Asplenium.] i. filices. 371 
Frond 1-2 ft. Pinnules 4-6 in., lanceolate, acuminate. Veins very 
close-set 7- A. falcatum. 
p. Fronds 2- or 3-pinnate, segments usually narrow. Sori generally 1 on each segment and 
close to its margin. 
Frond 4-12 in., erect, membranous, oblong, pinnate or 2-pinnate. 
Pinnules stalked 8. A. HooJcerianum. 
Frond flaccid, erect or pendulous, 1-3 ft., 2- or 3-pinnate, ovate- 
lanceolate, often proliferous 9. A. bulbiferum. 
Frond 3-5 in., stout, erect, ovate, acuminate. Pinnules sessile . . 10. A. Richardi. 
Frond 1-2 ft., very coriaceous, ovate linear or lauceolate. Pinnules 
very narrow, linear or lanceolate 11. A . flaccidum. 
B. Athyrium. Fronds 2- or 3-pinnate. Veins forked. Involucre cylindric, often irregu- 
larly torn, several on a segment. 
Frond tall, very broad, deltoid, membranous 12. A. australe. 
1. A. obtusatum, Forst. ; — FI. N. Z. ii. 33. Rhizome short, thick, 
woody. Fronds very coriaceous, 3 in.-3 ft. high, erect or pendulous, linear or 
oblong-linear, pinnate ; stipes very stout, with shining lanceolate scarious scales 
at its base ; rachis stout, compressed, margined, glabrous or with a few weak 
hairs ; pinnules 1-4 in. long, stipitate, oblong or linear- or oblong-lanceolate, 
obtuse or acute, truncate cuneate or rounded at the base, coarsely crenate or 
serrate, uppermost confluent. Veins usually simple. Sori linear or oblong, 
oblique. — Hook. Sp. Fil. iii. 96; Fil. Exot. t. 46; Labill. FI. Nov. Holl. 
t. 242. 
Var. P. obliquum. Pinna; generally longer, more acute. Sori linear, more numerous. 
A. obliquum , Forst. ; Labill. 1. c. t. 242. f. 1. A. apicidentatum , Homb. and Jacq. Voy. au 
Pole Sud, Bot. t. 1 A. 
Abundant, both varieties, throughout the islands, especially on maritime cliff's, from Ker- 
madec Islands, Macgillivray , to Campbell’s Island, J. D. H. Common throughout 
the south temperate zone. 
2. A. scleroprium, Bomb, and Jacq. Voy. Pole Sud, Bot. t. 1 D. 
Very similar to A. obtusatum, but more thick and coriaceous, with narrow- 
lanceolate, caudate-acuminate, entire serrate or almost pinnatifid pinnules. 
Sori extending to the margins of the segments. — Hook. Sp. Fil. iii. 98; 
A. flaccidum, /3. auclclandicum, FI. Antarct. 109. 
Lord Auckland's group : common in woods near the sea, Hombron and Jacquinot, 
J. I). II., Bolton. This is a transition form between A. obtusatum or lucidum and A. 
flaccidum. 
3. A. lucidum, Forst.; — FI. N. Z. ii. 33. Habit and characters of 
A. obtusatum, but larger, more flaccid, bright green, shining ; fronds some- 
times 2 ft. long and broad ; pinnules usually oblong-lanceolate, serrate, often 
6 in. long, upper base rounded incised or lobed. Sori numerous, linear, very 
long. — Hook. Sp. Fil. iii. 98. 
Var. p. paucifolium. Dwarf; pinnules 3-7, terminal much elongate. Hook. 1. c. 99. 
Var. y. Lyallii, FI. N. Z. ii. 33. t. 77. Lower pinnules again pinnate, the next deeply 
lobed. 
Abundant from Kermadec Islands, Macgillivray , to Otago, Banks and Solander, etc. 
Var. y. Otago, Lyall. This passes on one hand into A. obtusatum, and on the other into 
bulbiferum, through y. Lyallii, and into flaccidum through scleroprium, and others. 
4. A. Trichomanes, Linn. Rhizome short, thick, fibrous. Fronds 
2 b 2 
