Census Catalogue




CENSUS
CATALOGUE




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FAMILY
INDEX



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abbreviations




FERNS

OSMUNDACEAE

Osmunda regalis L.
IR: Raithneach ríúil , EN: Royal Fern

Native
ITB 1-29, 31, (32), 33-40
CC 1-40
30 (INJ, 7:54)
32 (INJ, 17:355).
SR
DBN (21): Not re-found at its only "recent" station in the county on a cliff-face at Howth Head (FDub)


ADIANTACEAE

Adiantum capillus-veneris L.
IR: Dúchosach , EN: Maidenhair Fern
No current conservation status
Proposed status: prop
Native
ITB 9, 16, 27, 28, 29, 35
CC *3, *5, 9, 16-17, 27-29, *30, *33, 35
3 (Lousley in Perring 1970:78)
5 (INJ, 21:466)
Delete 30 (error in CC)
33 (P '39).
SR Also infrequent escape from cultivation, e.g. Cobh, E Cork near railway line (Karley 1985, DBN), and in the same area at Cobh Station 1993-2000, on brickwork beside platform (M. Scannell); Ranelagh, Co. Dublin 1988 (FDub 1998); Adare, Co. Limerick 1997, on cloister walls (Reynolds 1998a); on walls in Caledon estate, Co. Tyrone 2000, where it was probably a relic of cultivation (I. McNeill).
DBN 21: Naturalized on walls in Ranelagh from Sallymount Avenue to Appian Way, M.Wyse Jackson, 1988 (FDub)

Cryptogramma crispa (L.) R. Br. ex Hook.
IR: Raithneach chas , EN: Parsley Fern
Conservation status: RE ; Protected, 1987, 1999
Proposed status: VU
Native
ITB 31, 33, 35, 38-40
CC 16, 20, 30-31, (33), 935), 37-39, (40)
16 (INJ, 18:336)
30 (INJ, 7:54; P '39)
37 (INJ, 18:89).
SR
DBN

Pteris cretica L.
IR: -- , EN: Ribbon Fern

ITB
CC
SR 21: Parnell Street, Dublin City 1981, under grating; commonly cultivated house plant (FID 1984, DBN).
DBN


MARSILEACEAE

Pilularia globulifera L.
IR: Lus an phiollaire , EN: Pillwort
Conservation status: RE ; Protected, 1980, 1987, 1999 ; Protected in Northern Ireland
Proposed status: VU
Native
ITB 1, 16, 36, 39-40
CC 1-2, 16, 26-27, 35, (36), 39-40
26 (INJ, 17:280)
27 (INJ, 15:237)
35 (P '46; INJ, 17:280).
SR
DBN



HYMENOPHYLLACEAE

Hymenophyllum tunbrigense (L.) Smith in Sowerby (Hymenophyllum tunbridgense)
IR: Dallán coille , EN: Tunbridge Filmy-fern

Native
ITB 1-12, 16, 24, 27-29, 31, 33, 35-37, 39
CC 1-6, 8-12, 16, 24-25, 27-31, 33, 35-37, 39
Delete 7 (INJ, 8:139)
30 (P '46).
SR
DBN

Hymenophyllum wilsonii Hook. (Hymenophyllum unilaterale)
IR: Dallán na sléibhe , EN: Wilson's Filmy-fern

Native
ITB 1-3, 6-7, 9, 12-16, 20-21, 26-31, 33-36,38-40
CC 1-4, 6-9, 12-16, 20-21, 25-31, 33-40
4 (Atlas)
8 (INJ, 8:329; P '46)
37 (INJ, 18:89).
SR
DBN

Trichomanes speciosum Willd. (Trichomanes radicans)
IR: Raithneach Chill Airne , EN: Killarney Fern
Conservation status: RE ; Protected, 1980, 1987, 1999
Proposed status: VU
Native
ITB 1-6, 8-10, (20), 33, 35, 36
CC 1-3, (4-6), 8, (9), 10, 13, (20), (28), (33), (35-36), 39
39 (INJ, 10:320).
SR
DBN



POLYPODIACEAE

Phymatosorus diversifolius (Willd.) Pic. Serm. (Phymatodes diversifolia)
IR: -- , EN: Kangaroo Fern

ITB
CC
SR 1: Rossdohan garden, spreading vegetatively (Walker 1983).}
DBN

Polypodium cambricum L. (Polypodium australe, Polypodium vulgare var. semilacerum)
IR: Scim leathan , EN: Southern Polypody

Native
ITB
CC 1-14, 16, 20-24, 28-29, 31-33, 36-37, 39-40
1: Ruins of old church, Kenmare. May 1898. RLP. V97.
2: Muckross Abbey, Killarney. Aug 1817. MJOK. V98.
3: Innishannon. Dec 1862. T.Wright. W55.
5: Near Whitegate. Oct 1893. RAP. W86.
7: Clonmel. 19 Aug 1966. DS. S22.
9: Murroogh. 1 Jun 1907. RLP. M10.
11: Near Kilkenny. 19 May 1897. RLP. S55.
12: 2 mls N. of New Ross. Aug 1932. RLP. S72.
13: On river bank, Graiguenamanagh. 22 Aug 1965. MS & EMB. S74.
16: Derryclare wood, Twelve Bens. 13 Jul 1967. MS. L75.
21: Dargle. 5 Jun 1815. ex herb. Dr.Steele. O21
22: Beauparc. Sep 1893. RLP. N97.
23: Knock Ross. 22 May 1890. HCL. N45.
24: Goat Island, Lough Ree. RPV. M96.
28: Bricklieve. 4 June 1967. DS. G71.
29: Glen below Newton Manor, Lough Gill. Jul 1932. RLP. G73.
31: Townley Hall, Tullyallen. 11 Feb 1979. DS. O07.
SR
DBN

Polypodium cambricum × interjectum = P. × shivasiae Rothm.
IR: -- , EN: --

Native
ITB
CC 4, 33, 39-40
4, 33, 39-40 (INJ, 20:399).
SR
DBN

Polypodium cambricum × vulgare = P. × font-queri Rothm.
IR: -- , EN: --

Native
ITB
CC 39
[2: (Inisfallen, Lakes of Killarney. Aug 1817. MJOK. V98). Doubtful.]
39 (INJ, 20:399).
SR
DBN

Polypodium interjectum Shivas
IR: Scim mheánach , EN: Intermediate Polypody

Native
ITB
CC 1, 3-13, 16, 19-23, 27-29, 31-33, 35, 37-40
3: Glandore. 4 Feb 1963. J.E.O'Donovan. W23.
4: Woodland 1 mile from Cecilstown. 20 May 1967. JSJ. R40.
5: Nelson Hill, Youghal. 1840. ex herb. Miss A.Ball. X17.
6: Grallagh Bridge. 16 May 1964. DS. X18.
7: River Suir, Clonmel. 18 Jul 1965. MS. S22.
8: Mullagh. Oct 1900. Miss C.G.O'Brien. R24.
9: Coney Island. Jun 1908. MCK & R.D.O'Brien. R36.
11: Silverspring, Mooncoin. 13 Oct 1974. G.Spencer. S51.
13: River Barrow, Graiguenamanagh. 22 Aug 1965. MS. S74.
16: Cromlyn, Connemara. Sep 1884. HCL. M05.
19: Barberstown Castle, Kildare. 1864. J.Douglas. N93.
20: Near Enniskerry. Jul 1905. J.Meade. O21.
21: Ballybrack. Killiney. 13 Nov 1962. JSJ. O22.
22: Keenoge, Duleek. 22 Mar 1963. DS. O06
28: Bricklieve Mountain, 4 Jun 1967. DS. G71.
31: King William's Glen, Oldbridge. Drogheda. 23 Mar 1963. DS. O07.
32: Lough Fea, Carrickmacross. 5 Jan 1966. DS. H80.
33: Lough Boho. 15 Feb 1969. JSJ. R14.
38: Castleward House Demesne. c.1964. JSJ. J54.
1, 12, 27, 29, 35 (Atlas)
10 (INJ, 17:216)
23 (fide D.Synnott)
36-37 (INJ, 18:89)
38-40 (FNE-H).
SR
DBN

Polypodium interjectum × vulgare = P. × mantoniae Rothm.
IR: -- , EN: --

Native
ITB
CC 6-7, 20, 31, 33, 37, 39
6-7, 20, 31, 33, 37, 39 (INJ, 20:399).
SR
DBN

Polypodium vulgare L.
IR: Scim chaol , EN: Polypody

Native
ITB
CC 1-7, 9-10, 12-16, 20-23, 25, 27-33, 35, 37-40
1: Derrynane Abbey. Sep 1838. MJOK. V55.
5: Glenbower wood, Killeagh. 28 Dec 1962. MS. W97.
7: Ballydrehid, 4 mls NW. of Cahir. 6 Jan 1966. MS. S02.
9: 2 mls W. of Killadysart. 18 Mar 1966. DS. R25.
16: S. of river near Clifden. 25 Jun 1968. MS. L65.
20: Devil's Glen. 2 Apr 1892. RWS. T29
21: Near base of Three Rock Mountain. 9 Aug 1894. RLP. O12.
22: (Silurian rocks, Bellewstown. fide DS. O06.)
23: Knockdrin. 3 Aug 1890. HCL. N45.
25: Rockingham. 24 Dec 1965. JSJ. G80.
28: (Bricklieve Mt., on Quercus. 1965. fide DS. G71.)
29: Lough Allen. 20 Feb 1963. JSJ. G91.
30: Near Ballyjamesduff. 25 Jul 1965. DS. N59.
31: Belpatrick, Collon. 17 Mar 1963. DS. N98.
37: Lowry's Lough. Jul 1883. Rev.W.F.Johnson. H94.
38: Castlereagh. 1886. RLP. J37.
39: Colin Glen. 29 Jul 1893. SAS. J27.
2-4, 6, 12, 14-15, 27-28, 32-33, 35 (Atlas)
10 (INJ, 17:215)
40 (FNE-H)
32 (Watsonia, 14:116).
SR
DBN

Polypodium vulgare sens.lat.
IR: Scim chaol , EN: Polypody

Native
ITB 1-40
CC 1-40
SR
DBN



CYATHEACEAE

Cyathea dealbata (J.R. Forst.) Sw.
IR: -- , EN: Silver Tree-fern

ITB
CC
SR 1: Rossdohan and other gardens, reproducing freely and competing successfully (Nelson 1979, Walker 1983).}
DBN



DICKSONIACEAE

Dicksonia antarctica Labill.
IR: -- , EN: Australian Tree-fern

ITB
CC
SR 1, {38}.
1: Woods W of Knightstown, Valencia Island 1960, in competition with native plants (Clement 1981). Rossdohan and other gardens, reproducing freely and competing successfully (Nelson 1979, Walker 1983). Previously noted as thriving in Kerry gardens (Praeger 1934b).
{38 Planted in a few gardens on the coast (FNE 1992).}
DBN



HYPOLEPIDACEAE

Pteridium aquilinum (L.) Kuhn in Decken (Pteris aquilina)
IR: Raithneach mhór , EN: Bracken

Native
ITB 1-40
CC 1-40
SR
DBN



THELYPTERIDACEAE

Oreopteris limbosperma (Bellardi ex All.) Holub (Lastrea oreopteris, Thelypteris limbosperma)
IR: Raithneach bhuí , EN: Lemon-scented Fern

Native
ITB 1-3, 6-14, 16, 18, 20-21, 24-25, 27, 29-31, 33-40
CC 1-3, 6-14, 16, 18, 20-21, 24-25, 27-31, 33-40
SR
DBN

Phegopteris connectilis (Michaux) Watt (Polypodium phegopteris, Thelypteris phegopteris)
IR: Raithneach feá , EN: Beech Fern

Native
ITB 1-3, 9, 14-16, 20-21, 27, 29, 31, 33-40
CC 1-3, 9, 14, 16, 20-21, 27-31, 33-40
16 (INJ, 19:208)
Delete 22 (cf. Bot. in Ir. but the record has not been traced).
SR
DBN

Thelypteris palustris Schott (Lastrea thelypteris, Thelypteris thelypteroides)
IR: Raithneach chorraigh , EN: Marsh Fern

Native
ITB 2, 9, 15, 19, (20), 22-26, 30, 34, 36, 39
CC 2-3, 9, 15, 17, 19-20, 22-27, 30-31, 33-34, 36-37, (39), 40
3 (INJ, 19:93)
20 (FW)
27 (INJ, 16:282)
33 (P '39)
37 (INJ, 21:181)
40 (FNE 2; Bot. in Ir.).
SR
DBN



ASPLENIACEAE

×Asplenophyllitis confluens (T. Moore ex E. Lowe) Alston
IR: -- , EN: --

Native
ITB
CC 1, (2)
1 (Fern Gazette, 12:301)
2 (Jermy 1960).
SR
DBN

Asplenium adiantum-nigrum L.
IR: Fionncha dubh , EN: Black Spleenwort

Native. Plants on serpentine in Galway and Mayo resembling A. cuneifolium Viv. are considered to be variants of A. adiantum-nigrum
ITB 1-40
CC 1-40
SR
DBN

Asplenium adiantum-nigrum × onopteris = A. × ticinense D.E.Meyer
IR: -- , EN: --

Native
ITB
CC 3-4, 11
4 (INJ, 19:36)
3, 11 (INJ, 21:369).
SR
DBN

Asplenium fontanum (L.) Bernh.
IR: -- , EN: Smooth Rock-spleenwort

ITB
CC
SR 39: Cave Hill near Belfast in 19th C, presumed to be an escape from cultivation (FNE 1992).
DBN

Asplenium marinum L.
IR: Fionncha mara , EN: Sea Spleenwort

Native
ITB 1-6, 9, 11-12, 16, 20-21, 27-29, 34-35, 38-40
CC 1-6, 8-9, 11-12, 16, 20-21, 27-29, 31, 33-35, 38-40
31 (IN, 21:203)
31: Clogher Head. 8 Jul 1976. DS. O18
33: Lough Navar Forest. 20 Dec 1980. R.Northridge. H05.
SR
DBN 8: Pier at Glin (R130478), 11 July 2005. Many plants in crevices of W-facing stone pier wall; also on E-facing side of same wall, bordering the pier surface. Sylvia Reynolds DBN.. First record since 1907 (INJ, 2006, 28:6)

Asplenium obovatum subsp. lanceolatum (Fiori) Pinto da Silva (Asplenium billotii, Asplenium lanceolatum, Asplenium obovatum)
IR: Fionncha lansach , EN: Lanceolate Spleenwort
Conservation status: V ; Protected, 1980, 1987, 1999
Proposed status: EN
Native
ITB 1, 3, 4
CC (1), (3-4), (12), 13, 20
SR
DBN

Asplenium onopteris L.
IR: Fionncha biorach , EN: Irish Spleenwort
No current conservation status
Proposed status: prop
Native
ITB
CC 1-4, (5), (8), (10), 11, (38)
1: Caragh Lake. Jun 1881. E.M.Battersby. V79.
2: Upper Lake, Killarney. 3 Jun 1903. RWS. V98
3: Inishannon. Dec 1862. I.Carroll. W55.
4: Castlenalact. near Bandon. 13 Apr 1975. Ms.J.Keyes McDonnell. W45.
5: Near Whitegate. Nov 1896. RAP. W86.
8: Shannon shore, near Foynes harbour. Apr 1875. Miss C.G.O'Brien. R25.
10: Near Cloughjordan. 20 Aug 1900. RLP. R98.
11: Snowhill. 11 Aug 1899. RLP. S61.
38: Near Newtownards. 8 Oct 1884. RLP. J47.
3 (INJ, 21:369)
2, 4, 38 (INJ, 19:75-77).
SR
DBN

Asplenium ruta-muraria L.
IR: Luibh na seacht ngábh , EN: Wall-rue

Native
ITB 1-40
CC 1-40
SR
DBN

Asplenium septentrionale (L.) Hoffm.
IR: Fionncha ladhrach , EN: Forked Spleenwort
Conservation status: RE ; Protected, 1980, 1987, 1999
Proposed status: VU
Native
ITB
CC 16, *38
16 (INJ, 15:149)
*38 (FNE).
SR On wall at Rowallane, Co. Down 1912, almost certainly of garden origin (Wear 1923).
DBN

Asplenium trichomanes L.
IR: Lus na seilge , EN: Maidenhair Spleenwort

Agg. The infraspecific taxa were not distinguished until 19??.
ITB 1-40
CC
SR
DBN

Asplenium trichomanes subsp. quadrivalens D.E.Meyer
IR: Lus na seilge mín , EN: Maidenhair Spleenwort

Native. The common form which can be confidently recorded from all vice-counties.
ITB
CC 1-40
SR
DBN

Asplenium trichomanes subsp. trichomanes L.
IR: Lus na seilge , EN: Maidenhair Spleenwort

Native
ITB
CC 38
38 (INJ, 21:420)
Delete 25 and 33 (the specimens in DBN are subsp. quadrivalens).
SR
DBN

Asplenium viride Hudson (Asplenium trichomanes-ramosum)
IR: Fionncha glas , EN: Green Spleenwort

Native
ITB 1-3, 6-7, 16, 27-29, 33-35
CC 1-3, 6-8, 16, 27-29, 33-35
8 (INJ, 8:329).
SR
DBN

Ceterach officinarum Willd.
IR: Raithneach rua , EN: Rustyback

Native
ITB 1-40
CC 1-40
SR
DBN

Phyllitis scolopendrium (L.) Newman (Scolopendrium vulgare)
IR: Creamh na muice fia , EN: Hart's-tongue Fern

Native
ITB 1-40
CC 1-40
SR
DBN



ATHYRIACEAE

Athyrium filix-femina (L.) Roth
IR: Raithneach Mhuire , EN: Lady-fern

Native
ITB 1-40
CC 1-40
SR
DBN

Cystopteris fragilis (L.) Bernh.
IR: Raithneach bhriosc , EN: Brittle Bladder-fern

Native
ITB 1-3, 6-7, 9, 10, 13-17, 19-20, 22-30, 32-40
CC 1-3, 6-11, 13-17, 19-20, 22-30, (32*), 33-40
SR
DBN

Gymnocarpium dryopteris (L.) Newman (Polypodium dryopteris)
IR: Raithneach dharach , EN: Oak Fern
Conservation status: V
Proposed status: EN
Native
ITB 9, 20, 28, 29, (39)
CC (9), (20), (28-29), 39
39 (INJ, 9:320).
SR
DBN

Gymnocarpium robertianum (Hoffm.) Newman (Thelypteris robertiana)
IR: Raithneach aolchloiche , EN: Limestone Fern
Conservation status: V ; Protected, 1980, 1987, 1999 ; Protected in Northern Ireland
Proposed status: EN
Native
ITB
CC 26, *31
SR
DBN

Matteuccia struthiopteris (L.) Tod.
IR: Raithneach mhothallach , EN: Ostrich Fern

ITB
CC 29, 39
29 (INJ, 18:82)
39 (INJ, 9:214).
SR Massereene, NE Lough Neagh since at least 1928, spreading beyond the gardens of Shane's Castle (Carrothers 1948a, 1948b, 1964).
29: Lough Rynn House, Mohill 1973, near old castle (Scannell & McClintock 1974, DBN).
39: Still in woods at Massereene by Lough Neagh (Harron 1986, FNE 1992, BEL).
40: Roe Valley Country Park 1976, abandoned garden (FNE 1992, DBN), also 1979 (BEL).
DBN



DRYOPTERIDACEAE

Cyrtomium falcatum (L.f.) C. Presl
IR: -- , EN: House Holly-fern

ITB
CC
SR 3, 5.
3: * W of Schull pier 1983, crevice in cliff face at about extreme high tide level (Cullinane & Crowley 1985, DBN).
5: Cork City 2000, single stunted clump on railway boundary wall (O'Mahony 2001c).
DBN

Dryopteris aemula (Aiton) Kuntze (Lastrea aemula)
IR: Raithneach chumhra , EN: Hay-scented Buckler-fern

Native
ITB 1-18, 20-21, 23-24, 26-40
CC 1-18, 20, (21-22), 23-24, 26-40
22: Ross. 15 May 1885. RLP. N48.
SR
DBN

Dryopteris affinis (Lowe) Fraser-Jenkins (Dryopteris borreri)
IR: Raithneach ghainneach , EN: Scaly Male-fern

Native
ITB
CC 1-40
SR
DBN

Dryopteris affinis × expansa = D. × remota (A.Br.) Druce
IR: -- , EN: --

D. expansa, a species with a northern and western distribution in Great Britain has not been found in Ireland.
ITB
CC 2, 15
2 (Atlas).
SR
DBN

Dryopteris carthusiana (Villars) H.P. Fuchs (Dryopteris spinulosa)
IR: Raithneach chaol , EN: Narrow Buckler-fern

Native
ITB
CC 1-20, 22-40
12: Mount Leinster. Oct 1969. EMB. S85
SR
DBN

Dryopteris carthusiana × D.dilatata = D. × deweveri (J. Jansen) Wachter
IR: -- , EN: --

Native
ITB
CC (15), 23, (27)
SR
DBN

Dryopteris cristata (L.) A. Gray (Aspidium cristatum, Lastrea cristata)
IR: -- , EN: Crested Buckler-fern

ITB
CC
SR 7: Rathronan near Clonmel pre-1836 (Parnell & Webb 1991, TCD); this record of Mackay's had been discounted in Cyb 1866.
DBN

Dryopteris dilatata (Hoffm.) A. Gray (Lastrea dilatata)
IR: Raithneach leathan , EN: Broad Buckler-fern

Native
ITB 1-40
CC 1-40
SR
DBN

Dryopteris filix-mas (L.) Schott (Lastrea filix-mas)
IR: Raithneach mhadra , EN: Male-fern

Native
ITB 1-40
CC 1-40
SR
DBN

Dryopteris filix-mas × affinis = D. × complexa Fraser-Jenkins (Dryopteris × tavellii)
IR: -- , EN: --

Native
ITB
CC 3-5, 8-9, 16, 23-24
3-5 (fide T.O'Mahony)
8: Lisnalanniv Hill, N. of Mitchelstown. 29 Dec 1978. MS. R71.
16: Currywongaun. 21 Nov 1975. MS & JW. L75. (possibly D.affinis).
23: (Irish Naturalists' Journal 21:416)
9 (Fern Gazette, 12:21)
23 (INJ, 21:416)
24 (H & R).
SR
DBN

Dryopteris oreades Fomin
IR: Raithneach shléibhe , EN: Mountain Male-fern
No current conservation status
Proposed status: prop
Native
ITB
CC 1, [3], 38
[3] (TCD).
SR
DBN

Dryopteris remota (Döll) Druce
IR: -- , EN: Scaly Buckler-fern
Conservation status: EW
Proposed status: EW
Native
ITB
CC
SR
DBN

Dryopteris submontana (Fraser-Jenk. & Jermy) Fraser-Jenk. (Lastrea rigida)
IR: -- , EN: Rigid Buckler-fern

ITB
CC
SR 31: Townley Hall, W of Drogheda pre-1859; planted on clay-slate wall (Cyb 1866, Parnell & Webb 1991, TCD).}
DBN

Polystichum aculeatum (L.) Roth
IR: Ibheag chrua , EN: Hard Shield-fern

Native
ITB 1-3, 5-20, 22-26, 28-40
CC 1-3, (5), 6-20, (21), 22-40
SR
DBN

Polystichum aculeatum × lonchitis = P. × illyricum (Borbas) Hayek
IR: -- , EN: --

Native
ITB
CC 29
29 (Fern Gazette, 10:281; INJ, 18:94).
SR
DBN

Polystichum lonchitis (L.) Roth (Aspidium lonchitis)
IR: Ibheag dheilgneach , EN: Holly-fern
Conservation status: RE ; Protected in Northern Ireland
Proposed status: VU
Native
ITB 1-2, 16, 28-29, 35
CC 1-2, 16, 27-29, 33-35
27 (Clare Is. Surv.)
33: Lough Navar Forest. c.20 Dec 1980. R.Northridge. H05.
34 (B & S; INJ, 21:416).
SR
DBN

Polystichum lonchitis × setiferum = P. × longchitiforme (Halacsy) Becherer
IR: -- , EN: --

Native
ITB
CC 29
29 (INJ, 19:79).
SR
DBN

Polystichum munitum (Kaulf.) C. Presl
IR: -- , EN: Western Sword-fern

ITB
CC
SR 20: Laneside bank near bridge in Glendalough village 1985 (Wyse Jackson 1995, TCD); previously found in same area 1917, 1926 (DBN) and 1951 (TCD).
DBN

Polystichum setiferum (Forsskål) T. Moore ex Woynar (Aspidium angulare)
IR: Ibheag bhog , EN: Soft Shield-fern

Native
ITB 1-40
CC 1-40
SR
DBN

Polystichum setiferum × aculeatum = P. × bicknellii (H. Christ) Hahne
IR: -- , EN: --

Native
ITB
CC 1, 9, 15, 19, 26, 30-31, 38
1, 9 (Atlas)
15: Dalystown. 25 Jul 1974. MS. M61.
23: Near Loughnagar School. 28 Jul 1984. CB & MS. N45.
33: Laugh Navar. 20 Dec 1980. R.Northridge. H05.
19, 26, 30, 38 (INJ, 18:94)
31 (INJ, 19:131).
SR
DBN



BLECHNACEAE

Blechnum cordatum (Desv.) Hieron. (Blechnum capense, Blechnum chilense, Blechnum magellanicum)
IR: -- , EN: Chilean Hard-fern

ITB
CC 1, 3
SR 1: * Near Cloonee Loughs, SW of Kenmare 1952, single plant (Welch 1953). Dingle 1968 (DBN). Rossdohan garden, long established by vegetative spread (Walker 1983).
3: * Glengariff 1952, naturalized (Welch 1953). Glengarriff 1977, near Reenmeen Bridge below a house (DBN).
38: Crawfordsburn Park c.1971, planted and established by stream; Castlewellan Forest Park 1990, in arboretum (FNE 1992).
DBN

Blechnum spicant (L.) Roth (Lomaria spicant)
IR: Raithneach chrua , EN: Hard-fern

Native
ITB 1-22, 24-40
CC 1-40
SR
DBN

Woodwardia radicans (L.) Sm.
IR: -- , EN: Chain Fern

ITB
CC
SR 1: Rossdohan garden, reproducing vegetatively and by spores, and competing successfully (Nelson 1979, Walker 1983).}
DBN



AZOLLACEAE

Azolla filiculoides Lam. (Azolla caroliniana)
IR: Raithneach uisce , EN: Water Fern

Invasive
ITB
CC 4, (5), 20, (22*)
4: (Marsh by Tramore river, N. of Frankfield. c.1950. fide MS. W66.)
5 (New Phytologist, 11:127)
20 (INJ, 9:340; INJ, 11:386)
22 (Proc. BSBI, 3:182)
Delete 31 (the site is in VC. 22-Proc. BSBI, 3:182).
SR 4: Lough of Cork, 8 miles (c.13 km) W of Queenstown (Cobh) Junction, first seen there 1934 (Praeger 1946). Marsh by Tramore River, N of Frankfield c.1950 (DBN). Lee Fields 1970s, 1995; Clogheenmilcon marsh, Blarney 1995 (O'Mahony 1996).
5: * Near railway between Little Island and Glounthaune 1907, plentiful in large pond (DBN). Near Queenstown (Cobh) Junction 1911, plentiful in brackish water having spread from adjoining garden (Druce 1911, 1912). Little Island 1974, 1995 (O'Mahony 1996). Little Island 1994-95, and Great Island since 1994 (Lucey 1998). Castlemartyr demesne 1994, artificial lake (M. Scannell). Dower Lough near Castlemartyr 1999; Ballybutler Lough (Scannell 2000a).
12: Inish and Ballyteige Slob, Duncormick, 700 m S of Yaletown Bridge 1997 (DBN).
20: {Mount Usher garden, Ashford (Pim 1893).} Buckroney marsh 1949, considered a deliberate introduction (Brunker 1949); pond in Buckroney sand dunes 1965 (DBN).
21: [Near Dublin c.1904 (record in Simpson (1960, p. 413) from an unavailable publication).] Grand Canal and several ponds since early 1980s (FDub 1998, DBN).
22: S of Drogheda 1957 (Wallace 1959a, but 22 not 31).
36, 37, 39: Lough Neagh 1988, washed up on the shore (Weyl et al. 1989).
37: S of Derrytrasna 2001, ditch (I. McNeill).
38: Clandeboye Lake 1985, introduced there (FNE 1992).
38, 39: River Lagan in Belfast 1995-96 (Wolfe-Murphy 1997, FBel 1997).
39: Dunore Point, Lough Neagh 1990, small ponds (FNE 1992).
DBN 21: Island Pond in the Phoenix Park, JS, MN, 1981 (FDub)
10: Derg Marina, Ballina, N.Tipperary, R698736, 5th March 2002, Dan Minchin, INJ 28: 137-138. (INJ, 2005, 28:3)