175 227 



222. Dryopteris Jamesoni (Hook.) C. Chr. comb. iiov. — Fig 30 b. 



Syn. Nephrodium Jamesoni Hook. spec. 4: 66. 1862. 



Type from Ecuador, ad ripam fl. Napo, Jameson nr. 761 (Kew!) a very 

 similar plant was collected in Peru, Tarapoto by Spruce nr. 3946 (L). 



A small species closely related to D. semihastata, which if resembles in size, 

 colour, pubescence and the auricled upper base ot the pinnæ, but the lamina is 

 fully pinnate scarcely to the middle, upwards pinnatifid only. Largest leaf seen: 

 stipe 9 cm, lamina 17 cm long, 4 cm broad below the middle. Stipe and rachis 

 rather pilose by long, stiff, simple hairs, between which some very small, stellate 

 hairs can be found. Upper surface densely and adpressedly pubescent, costæ and 

 veins beneath setose by patent setæ. Lowest pair of pinnæ reflexed and considerably 

 reduced. Veins in about 3 pairs in the lobe of the larger pinnæ, the basal ones 

 normally united. Sori inframedial furnished by a setose indusium. 



It is possible that D. Jamesoni is a small variety of D. macrotis, which it re- 

 sembles closely in pubescence of the surfaces, the auricled pinnæ and other cha- 

 racters. Baker referred it in Syn. Fil. 293 to Nephr. molle, to which it is, of 

 course, not at all related. 



223. Dryopteris Warmingii n. sp. — Fig. 30 c. 



Syn. Nephrodium molle var. ;- Jamesoni Bak. Fl. bras. 1': 489. 1870. 



Type from Brazil: Minas Geraes, Lagoa Santa, leg. Warming 1864 (H!) and 

 the same from Sao Paulo, Cajuni, Regnell nr. HI. 1449 b. (Rg, W). 



Rhizomate crasso, ad 5 cm alto, 1 cm crasso, squamis brunneis sparse stel- 

 lato-ciliatis praedito. Stipitibus fasciculatis. ad 20 cm longis, tenuibus, pilis minu- 

 tis stellatis puberulis vel subglabris, supra sulcatis. Lamina 15 — 20 cm longa, 

 ovato-oblonga, sursum in apicem pinnatifidum sensim attenuata, membranacea vel 

 flrmo-herbacea, atro-viridi. Rachi dense pilosis; pilis simplicibus longioribus pilis 

 minutis stellatis intermixtis. Pinnis suboppositis, sessilibus, basalibus reflexis vix 

 abbreviatis, medialibus horizonlalibus apicibus curvatim ascendentibus, 3 — 5 cm 

 longis, 1 — 1' i cm latis, basi superiore distincte auriculalis, acuminatis, grosse loba- 

 tis, dense ciliatis, supra pilis simplicibus adpressis subdense strigosis, subtus ubique 

 (praesertim ad costas venasque) pilis simplicibus pubescentibus. Lobis contiguis, 

 falcatis, obtusis, basali anteriore duplo majore, subacuto. Venis simplicibus, 5—6- 

 jugis, basalibus aut anastomosantibus aut ad sinum conniventibus. Soris infra- 

 medialibus, parvis; indusiis parvis, dense setosis, mox deciduis. Sporangiis pilis 

 longioribus maxime in pedicellis sedentibus intermixtis. 



I am convinced that this new species is specifically distinct from the Andine 

 D. Jamesoni, with which Baker united it. It is true that the two species agree as 

 to almost all characters, still our new species is larger, has a larger number of 

 veins, the basal pinnæ scarcely reduced, and the lamina is generally fully pinnate 

 at the lower two-thirds. 



