234: 38. ASPLEXIUM, §§§§§ DIPLAZIUM. 



naked ; sori reaching from the midrib nearly to the edge. — A. cubense, HI: Sp. 3. 

 p. 263. t. 207. 



Hab. Cuba, Wright, 1032-3. — This comes nearest A. arhoreum, but is smaller and 

 more delicate, with the lowest pinnules subdeltoid, and often reaching quite down to the 

 rachis below on both sides. 



222. A. (Dipl.) longtfolium, Don ; st. G-9 in. h, slender, erect, scaly below; 

 fr. 12-18 in. 1., 4-6 in. br., the apex pinnatifid, below this 12-18 pairs of falcate 

 pinnce, the lower ones stalked, 2-3 in. 1., | in. br., the point acuminate, the edge 

 lobed, and the lobes sharply and finely serrated, the two sides unequal, the 

 upper distinctly auricled, and the lower obliquely truncate at the base ; texture 

 herbaceous ; veins fine, 6 or more in a group ; so7^i falling considerably short of 

 the edge. — A. lobulosum, Wall., Hk. Sp. 3. p. 252. 



Hab. Himalayas. 



223. A. (Dipl.) BracJcenridgei, Baker ; st. G-9 in, 1., firm, greyish, naked ; fr. 

 12-18 in. 1., 6-9 in. br., the apex pinnatifid, below this 6-9 pinnae on each side, 

 the lower ones 1-2 in. apart, and distinctly stalked, 4-5 in. 1., nearly 1 in. br., the 

 point acuminate, sharply serrated, the edge cut down one-third of the way to 

 the rachis into blunt incised lobes j in. br. ; texture subcoriaceous ; rachis firm, 

 grey, naked ; veins pinnate in the lobes ; sori in long lines reaching to the 

 edge. — D. bulbiferum, jBrac/{;. t. 18. D. extensum, J. iSm. (in part). 



Hab. Philippines, Cuming, 333, 383 ; Fiji, Seemann, 825, Milne, 69, 806.— This differs 

 from sylvatieum by its broader and distinctly stalked pinnae of firm texture, which are 

 often proliferous from the axils. 



224. A. (Dipl.) tomentosum, Hk. (not Mett.) ; st. 6-9 in. 1., firm, erect, grey, 

 deciduously coated with fine short brown tomentum ; fr. 6-12 in. 1., 3-4 in. br., 

 ovate-lanceolate, with numerous close-placed lanceolate pinnce, the lower pair 

 deflexed, those next in order hoi'izontal, 2-3 in. 1., \ in. br., the point acute, 

 the edge cut down regularly throughout into oblong-fafcate lobes \ in. br., which 

 reach one-half or two-thirds of the waj' down to the rachis, the base narrowed 

 suddenly ; texture subcoriaceous ; rachis finely tomentose ; both surfaces naked 

 except the veins beneath ; vei?is 3-4 on each side in the lobes ; sori linear, 

 touching the edge but not the midrib. — Hk. Sp. 3. p. 249. 



Hab. Khasia and Malayan Peninsula and Isles. — In size and texture this corresponds 

 •vi'iih. porrectum. It is the original D. tomcntosum of Blume, according to an authentic 

 specimen, but not the much more hairy A. tomentosum of Mettenius, which is our 

 A. lasio'pteris. 



225. A. (Dipl.), Sprucei, Baker; st. tufted, 6-9 in. 1., dark -brown, firm, erect, 

 nearly naked ;//•. 9-15 in. l.,3 in. br.,narrow]y ovate-lanceolate, the apex pinnatifid, 

 below tliis 15-20 pairs of spreading /%«?;«? 1-]^- in. 1., ^-| in. br., the point ratber 

 nlunt, the edge lobed in the lower part hallway down to the rachis, tlie lol)es 

 2-3 lin. br., inciso-crenate, the base narrowed suddenly on both sides ; texture 

 papyracco-herl)aceous ; colour very dark-green ; rachis angular, channelled and 

 slightly winged ; veins distantly pinnate, only 2-3 simple veinlets on each side 

 in the lower lobes ; swi reaching from the midrib nearly to the edge. 



Hab. Andes of Ecuador, Jameson, Spruce, 5346. — A well-marked plant, which from 

 its colour and texture evidently grows in very damp places. 



226. A. (Dipl.) japonicum, Thunb. ; rhizome slender, wide-creeping ; st. 6-12 

 in. 1., straw-coloured or brownish, slightly scaly towards the base ; fr. 9-15 

 in. 1., 4-6 in. br., ovate-lanceolate, with 8-10 rather distant pinnce below the 

 pinnatifid apex, the lower ones sessile, 3-4 in. 1., f-1 in. br., cut down in the lower 

 parts two-thirds of the way to the rachis into close oblong slightly-tootlied lobes 



