Hymenophyllum alatum. 8m. in E. Bot. 147 {not ScJiJc. Fit. t. 135 b.). Willd . 
Sp. PI. v. 5. p. 526. 
Hymenophyllum Tunbridgense. /3, 8m. FI. Brit. p. 1142. 
Var. /3. Andrewsii; fronds lanceolate; sori very copious; receptacles of the sori 
longer; involucres more winged. Newm. Brit. Ferns , ed. 3 . p. 292. 
Trichomanes Andrewsii. Newm. lx. ed. 2. p. 14. 
Hab. Wet rocks in mountainous countries ; chiefly in Ireland. Ireland : Her 
mitage Glen and Powerscourt, county Wicklow; near Youghal, Cork, and 
Bantry, and in other places in that county; Turk Waterfall, Cromaglaun 
Mountain, Mount Eagle, near Dingle, Iveragh, etc., county Kerry. For¬ 
merly abundant at Bellbank, near Bingsley, Yorkshire, but not now found 
there. Var. j3. Glouin Curragh, Iveragh, Kerry, W. Andrews , Esq. 
Like the subject of the last Plate {Adiantum Capillus- Veneris ), 
this is a local plant, though plentiful in some parts of Ireland. 
Further south however, in Europe, and-extending even into the 
tropics (especially if mountains) it is abundant, in the African 
North Atlantic islands, in various parts of Asia, North and South 
America, and the West Indian and the Sandwich Islands. A 
more full list of localities than it is here needful or desirable to 
give, will be found in the : Species Eilicum, 5 l.c ., and also of the 
synonyms; for the different names are almost as numerous as 
are the different places of growth. It was long supposed to be 
peculiar to the British Islands. 
The plant itself is one of great beauty, even in its ordinary 
state, and is much sought for and prized by Eern-cultivators; 
but the var. Andrewsii is especially beautiful, having elongated 
and often drooping fronds, with copious fructifications, rendered 
more conspicuous by the very much exserted receptacles, all 
turning or curved upwards as it were towards the strongest 
light. 
Plate 42. Fertile plant of Trichomanes radicans, Sw. Fig. 1. Pinnatifid 
segment, with a sorus,— magnified. 2. Sorus, with the involucre cut through 
vertically, showing the capsules attached to the long columnar receptacle,— more 
magnified. 3. Front; and 4, side view of a sessile capsule, showing the broad, 
entire ring :— still more magnified. 
