49 



101 



parallelis, 4 mm latis, basali posteriore aequali vel parum reducta, anteriore sæpe 

 valde prolongata lobata, rachi parallela vel eam tegente. Venis 15— 20-jugis, parum 

 obliquis. Soris parvis medialibus vel paulo inframedialibus, exindusiatis (?); 

 sporangiis pilis articulatis intermixtis. 



Allied to D. Anniesii, from which it differs by its numerous, not adpressed, 

 dirty-brown, very large scales of stipe and 

 rachis and by its small, medial sori without 

 distinct indusia. The scales of the costæ be- 

 neath are larger than in any other species and 

 formed by large, isodiametric cells with thin 

 walls; their margins are irregularly toothed. 

 Seen in the microscope a scale resembles not a 

 little an old window, hence the specific name 



(fig. S''). 



To this species I refer a plant from S ta. 

 Catharina: S. Joaquin, leg. Spannagel nr. 174 Fig-8. D. fenesiralis n. sp. Base of pinna 



,^ r>. .. . ,, u i in 1 J X *U and segment X I'Is. (Orig.) 



(C, R); it IS smaller but still more scaly and * ^ 



the scales larger and reddish-yellow; base of stipe with a dense tuft of very large, 

 thin scales, the largest 3 cm long, 6 mm broad. It can be named var. Span- 

 iiagelii Ros. 



39. Dryopteris vellea (Willd.) O. Ktze. Rev. 2: 814. 1891; C. Chr. Ind. 300. 



Syn. Aspidium velleum Willd. sp. 5: 255. 1810. 



Nephrodium velleum Desv. Prod. 261. 1827; Bak. Syn. 265. 

 Nephrodiiim aureovestitum Hk. sp. 4: 101 tab. 246. 1862. 



This species was founded on Plumier tab. 49, which plate illustrates a plant 

 from San Domingo; it is probable that N. aureooestitum Hk. based on Linden 

 nr. 1901 from Cuba, Mt. Libanon is the same, but I have, however, not seen any 

 Cuban specimen. It seems to be a rare species, I have seen only a single speci- 

 men from Jamaica, leg. Jenman (W); according to Jenman it is common in 

 forests on the Manchester mountains at 2000 feet altitude. 



D. vellea alone represents the subgenus in the West-Indies. It resembles 

 in size D. deflexa, but in the scales much more D. cirrhosa var. eriocaulis, 

 from which it differs by the glabrous leaf- tissue and fewer veins (8 — 10). 

 The scales are reddish, entire with a pocket -shaped base, not hair-pointed 

 (fig. 3^). 



40. Dryopteris cirrhosa (Schum.) O. Ktze. Rev. 2: 812. 1891; C. Chr. Ind. 257. 



Syn. Aspidium cirrhosum Schum. Vid. Selsk. Skr. 4: 231. 1827. 

 Nephrodium crinibulbon Hk. sp. 4: 92 tab. 244. 1862. 



D. K. I). Vidensk. Selsk. Skr., 7. Række, naturvldensk. og mathem. Afd. X. 2. I'i 



