140 88 



103. D. velata (Kze.) O. Ktze.; C. Chr. Revision nr. 22; Smiths. Misc. Coll. 53: 373. 

 Area: Cuba. 



104. D. aspidioides (Willd.) C. Chr., Revision nr. 23. 

 Area: Costa Rica — Peru. 



105. D. ptarmica (Kze.) O. Ktze.; C. Chr. Revision nr. 24 fig. 14. 

 Area: Southern Brazil. 



106. D. pachyrachis (Kze.) O. Ktze., C. Chr. Revision nr. 44 fig. 31; Smiths. Misc. 



Coll. 53: 382. 



Area: Panama — Venezuela— Ecuador. Southern Brazil (var. platyrachis (Fée) 

 C. Chr.). — Jamaica, St. Vincent (var. Jenmani (Bak.) C. Chr.). 



The specimens from Panama collected by Maxon nr. 5274 (W) are very 

 similar to var. bogotensis C. Chr. Revision 306, which differs from typical D. pachy- 

 rachis by its pubescent rachis and upperside. Similar more hairy forms occur in 

 Ecuador and I think I was right in referring Nephrodium crassipes Sod. and N. 

 stramineiiin Sod. to D. pachyrachis. A third variety is no doubt 



Nephrodium Sprucei Bak. Syn. Fil. 269. 1867. 



Dryopteris Sprucei O. Ktze. Rev. 3: 813. 1891; C. Chr. Index 294. 



Ecuador, Mt. Tunguragua, Spruce nr. 5299, Llalla, Spruce nr. 5299 A, Mon- 

 tana de Canelos, Spruce nr. 5301 (all Kew!). 



Baker founded his new species on these three specimens, which were all 

 referred to N. resinoso-foetidum by Hooker; they are, however, not quite identical. 

 Best agreeing with Baker's description are nr. 5299 A and 5301. Nr. 5301 is as to 

 all characters the eglandulose underside excepted typical D. pachyrachis; nr. 5299 A 

 is nearly the same, but the upperside is rather pubescent, the underside and 

 indusium sparsely glandular with the characteristic large, red glands, and the 

 costæ beneath bear some few thin, brown scales. Nr. 5299 looks very different, 

 but it is certainly a large-growing, thin-leaved form of D. pachyrachis. Its pinnæ 

 are 20 cm long, 3^2 cm broad, rather densely hairy above, glabrous and slightly 

 glandular beneath, the costæ rather scaly, and the irregular (sometimes subathy- 

 rioid) very large indusia slightly ciliate and glandular by large, red glands. Seg- 

 ments 5 mm broad with about 10 veins to a side. 



The var. Jenmani (Bak.) C. Chr. may be specifically different (see Smiths. 

 Misc. Coll. 53: 382 — 383); still it differs scarcely more from the type than do some 

 of the Andine forms. The most different form is the large, very thin-leaved and 

 densely glandulose variety that I erroneously in "Revision" referred to D. German- 

 iana as var. glandulosa. It was also collected by W. Harris nr. 7485 (B), Jamaica, 

 Blue Mountain Peak. 



