slightly uudulate, margin of lobes raised, nerveless, without pores,
fleshy, membranaoeous, semi-pelluoid, antical layer of cells clearly
defined, 4-, 5- and G-angled,(oblong,wails rather thick, postical layer
green, 4-, 5- and G-angled, clearly defined, about twice the size of
the antioal layer; postical side of frond clothed with numerous
scales ; radiculose, rootlets very numerous proceeding chiefly from
tlie midrib, long, fasciculate, simple, white. Soyphi none. Female
receptacle convex, pedunculate, at first surrounded by linear
scales, all recurved ; peduncle long, succulent, thick, semi-pellucid,
greenish, flexuose, bi-canaliculate, canals with rhizoids like rootlets.
Calyptra ruptured, leaving the remains at the base of the
pedicel. Capsule stipitate, globose, slightly verruculose, dividing
into 4, G or 8 unequal valves. Spores reddish-brown, angular-
rotundate, verruculose. Elaters elongate, dark reddish-brown,
delicate, spiral fibres closely twisted. Male receptacle raised
above the level of the frond; peduncle very short, succulent,
thick, greenish below, brownish above, striate, bi-canaliculate,
beset with numerous hair-like scales; peltate, depressed in the
centre, fleshy ; antheridia oval, hyaline.
D im ens ions.— Fronds 2 to 5 inches long, ¿- to 1 inch wide,
near the margin '3 mm. thick, middle '9 mm. thick, scales '2 mm.
long, spores -025 mm. diam., elaters '8 mm. long x '01 mm.
broad.
H ab.— On wmt dripping rocks in shady places. Very rare,
except in the South of Ireland, where in some localities it is
abundant.
1. Ilfracombe, Devonshire, IF. Curmw. 2. Fairlight Glen,
Hastings, Sussex, E. M. Holmes, lieu. E. N. Bloomfield.
I. “ Sheltered, shady, rock\'recesses, where water is constantfy
trickling over, or otherwise very moist. Blackwater Bridge, near
Dunkerron, Br. Taglor (1820). Tore Waterfall, near Killarney.
Maghanabo Glen, near Fermoyle, Co. Kerry, IF. IFilson, Esq.
(1829), who first published the plant as a native of the British
Isles, in English Flora (1833). Ballinahassig Glen, near Cork,
El. Cork. Dunscombe’s Wood, I. Carroll. Altadore Glen, near
Delgauy, Co. Wicklow, The llight Hon. Lord Gough. We have
also collected it iu the same glen, 1872 and 1874; also very
sparingly near a small waterfall at Luggielaw, Co. Wicklow. This
remarkable plant is very local in Ireland, and only occurs in the
warmest and most sheltered spots.”—Dr. D. Moore, Pro. Roy.
Irish Acad. p. 603 (1876). Killarney, Br. Carrington, and
others.
Found on the Continent (Pyrenees, Dr. Spruce, ProJ. Schimper,
Italy), and in the Southern States of North America.
O b s .—Our finest frondose species, and which seems to be
almost peculiar to the South of Ireland, as only two other
stations, where it has been sparingly collected, are known.
When seen not likely to be confounded with any other of our
frondose species.
Dr. Spruoe and Prof. Schiffner consider it a variety of the
tropical Bumortiera hirsuta (Swartz), and Dr. Stephani in his Sp.
Hep. merges it with th.at species.
D escription op P late CCXIII.—Fig. 1. Portion of frond,
natural size. 2-4. Female fronds, natural size (Tayl.). 5. Cross-
section of frond x 11 (Killarney, S. O. L.). 6, 7. Cilia x 64
(ditto). 8. Cross-section of pedicel x (Tayl). 9. Calyptra x
(Tayl). 10. Female receptacle x (ditto). 11. Ditto, reversed
X (ditto). 12. Spores and elaters x (ditto). 13. Male frond,
natural size (ditto).
Genus 51. TAEGIONIA, Mich.
Targionia, Mich. Nov. PI. Gen. (1739).
Frond furcate and continuous from the apex, conspicuously
porose, squamulose beneath. Distinct female receptacle absent,
the involucre sessile springing from the apex of the frond, bivalved,
1-fruited. Pistillidia 3 to 4, of which one is perfected. Perianth
absent. Calyptra thin, persistent, investing the capsule, at length
vanishing at the apex. Style deciduous. Capsule solitary, shortlj'
pedicellate, globose, rupturing ii'regularly. Spores globose, tuberculate.
Elaters bi-trispiral. Androecia lateral, disciform, papillose,
rising on a separate innovation from the antical costa.