: 

 220 38. ASPLEKiUM, EUASPLEfflUM. 



151. A. Fadyeni, Hk. ; st. scattered, 3-4 in. L, slender, scaly below ; fr. 6-8 

 in. L, 2 in. br., with several distant horizontal lanceolate pinnce on each side, 

 which are only lobed in the upper third, but cut down below into spathulate 

 pinnl. 2 lin. 1., ^ in. br. ; texture herbaceous ; rachis naked, flaccid ; veins 

 pinnate ; sori few, small, linear-oblong. Hk. Sp. 3. p. 192. 2nd Cent. t. 27. 



Hab. Jamaica, McFadyen. This is a feebler plant than the less cut forms of A . rhizo- 

 phyllum, with fewer and more distant pinnae and pinnules. 



152. A. tenuifolium, Don ; st. tufted, 3-6 in. 1., slender, naked, slightly 

 eheneous ; fr. 6-12 in. L, 3-5 in. br., oblong-lanceolate, with numerous pinnce 

 on each side, the lower ones 2-3 in. 1., f in. br. ; lower pinnl. subdeltoid, cut 

 down to a narrowly-winged rachis into spathulate segm. ^ in. br., sharply 

 incised on the outer edge; texture thinly herbaceous; rachis green, naked, 

 slender ; veins solitary ; sori 1 or 2 to each segm. placed on the disk. Hk. Sp. 3. 

 p. 193. 2nd Cent. F. t. 29. A. concinnum, Wall. 



Hab. Himalayas, Neilgherries, Ceylon, Malayan Peninsula. 



153. A. rhizophyttum, Kunze ; st. tufted, 2-6 in. 1., greyish, naked ; fr. 6-12 

 in. L, 1^-2 in. br., cut down into numerous close-placed horizontal pinnce on 

 each side, the central ones 1 in. L, J- in. br., cut down throughout nearly to the 

 centre into simple or forked erecto-patent pinnl., the lowest on the under side 

 suppressed ; texture herbaceous ; rachis compressed, winged ; veins one to each 

 segm. ; sori solitary, submarginal. A. dubium, Brack ^ $, A. myriophyllum, 

 Presl ; fr. broader ; central pinnce 1^ in. 1., with lower pinnl. cut down into 

 several simple or forked linear segm. Hk. Sp. 3. p. 200. 



Hab. Florida, Trop. America, Polynesia. A. strictum, Brack, t. 23, differs from the 

 typical plant by its stronger rachis, and pinnules of the upper half of the pinnae linear- 

 falcate and simple ; A. bifissum, Fe"e, is a slender form, with pinnatifid pinnules with 

 distant linear segments; and A. cladolepton, Fe"e, has cuneato-flabellate lower pinnules 

 deeply 2- to 3-cleft at the apex. A. dubium has a creeping rhizome, and is probably 

 distinct. 



154. A. rutaceum, Mett. ; st. tufted, 1-4 in. 1., naked, polished, chesnut-brown ; 

 fr. 6-12 in. 1., 3-4 in. br., oblong-lanceolate, elongated and radicant at the apex ; 

 pinnce numerous, close-placed, horizontal, the central ones l-l in. 1., J-g in. br., 

 cut down to the rachis into numerous rhomboidal pinnl. 2 lines each way ; 

 lowest segm. spathulate, stalked ; texture thinly herbaceous ; rachis polished 

 and chesnut-brown like the stem ; veins one to each segm. ; son solitary, central. 

 Hk. Sp. 3. p. 203. 2nd Cent. F. t. 34. 



Hab. Venezuela, New Granada, Ecuador, Galapagos Island This differs from the 

 preceding by its radicant habit and distinctly obovate-spathiilate pinnules. It comes near 

 A. rachirhizon, Haddi. 



165. A. cictttarium, Swartz ; st. tufted, 4-8 in. L, firm, greenish, naked ; fr. 

 6-15 in. 1., 4-6 in. br., with 10-15 horizontal pinnce on each side, the lower ones 

 2-3 in. 1., 1 in. br., cut down to the rachis into numerous ovate-rhomboidal 

 pinnl., which are f- in. L, J in. br., obliquely truncate on the lower side, and cut 

 down to the rachis throughout into linear or oblong segm., the latter once or 

 twice cleft at the apex ; texture thinly herbaceous ; colour bright-green ; rachis 

 compressed and often winged ; sori principally in two rows along the pinnl. 

 Hk. Sp. 3. p. 198. /3, A. abyssinicum, Fee ; fr. flaccid ; texture thin ; pinnl. 

 and segm. fewer and broader. Hk. Sp. 3. p. 191. 



Hab. Tropical America, from Cuba and Mexico to Peru ; Abyssinia, Macalisberg, Guinea 

 Coast. A. montverdcnse, Hk. 2nd Cent, t, 41, appears to be a reduced form of this. 



