140 ’ FERNS COLLECTED IN MADAGASCAR BY M. HUMBLOT. 
patent, distinctly petioled, 4-43 in. long, 3-2 in. broad, acuminate, 
subdeltoid at the base, distinctly serrulate towards the tip, sub- 
entire or obscurely crenate below. Veins close, distinct, rather 
ascending, mostly 2-3-furcate from the base or near it. Sori 
costular, subcontiguous. Indusium large, brown, glabrous, mode- 
rately firm in texture, breaking up irregularly. A very distinct 
novelty, in cutting and texture most resembling the well-known 
Alsophila Tenitis of Brazil. 
295. C. canaliculata Willd. 
299 (34*). C. ligulata, n. sp.—Frond ample, bipinnate, mode- 
rately firm in texture, green and glabrous on both sides of the 
3 in. broad, entirely or distinctly crenate. Sori crowded, costular. 
with a regular truncate 
262 (34*). C. hirsuta, n. sp.—Frond ample, bipinnate, mode- 
hairy but not 
narrow 
close, mostly forked at or near the base. Sori crowded, fillmg up 
the whole surface of the fertile segments. Indusium membranous, 
fragile, breaking up irregularly. A near ally of the well-know2 
Mauritian C. excelsa Sw. 
560. Hymenophyllum ciliatum Sw. 
280, 451. Trichomanes rigidum Sw.—Two different varieties. 
412. Dicksonia Henriette Baker. 
808. Davallia calobodon Mett.—This I incline to place as ® 
variety of the Asiatic D. strigosa Sw. 
29 data § 
261. D. mauritiana Hook.—This I now incline to look upon 48 
a variety of D. elegans Sw. 
285. D. Goudotiana Kunze. 
430 (70*). D. (Srenotoma) odontolabia, n. sp.—Forms a dense 
mass with the habit of a Hymenophyllum. Rhizome filiform, wide- 
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