191 



243 



ad basin pinnaruin superiorum interdum bulbillifera. Pinnis remotis, alternis, 

 subhorizontalibus, inferioribus breviter petiolulatis, superioribus sessilibus, oblongis, 

 10 — 14 cm longis, 2' 3 cm latis, longe acuminatis, inferioribus vix brevioribus ver- 

 sus basin breviter attenuatis, superioribus basi truncatis, supra ubique pilis ad- 

 pressis simpiicibus deciduis sparse strigosis, ad 

 costas pilis cylindricis rufis dense setosis, infra 

 inter venas glabris, ad costas costulasque pilis 

 similibus pilis stellatis brevissimis intermixtis 

 hirtis, ad alam 4—5 mm pinnatifidis. Laciniis 

 parum obliquis, obtusis vel subacutis, versus api- 

 cem leviter crenatis. Venis simpiicibus, 10 11- 

 jugis, basalibus duabus ad sinum conniventibus. 

 Soris medialibus. Indusiis subpersistentibus, pilis 

 simpiicibus dense setosis. Sporangiis glabris. 



By its peculiar pubescence different from all 

 allied species with exception of 1). carta and Ü. 

 lugubrifonnis. Dr. Hieronymus referred Stübel's 

 specimens to 1). nephrodioides, the pubescence and 

 venation of which are totallv different. 



243. Dryopteris lugubriformis 

 Rosenst. Fedde, Reperl. 7: 299. 1909. — Fig. 34 d. 



Type-specimen from Peru orient.: Tara- 

 poto, Spruce nr. 4749 (RB!). 



Closely allied to the preceding species, but 

 leaf firmer, grey-green, throughout more densely 

 hairy, especially above, terminating in a subsimilar 

 terminal pinna, and the lower 2 — 3 pairs of veins 

 connivent to sinus; by these two last characters it 

 resembles I). Iristis and allied species, Ijut its pro- 

 per place seems to be here. Rachis gemmiferous 

 above, sori inframedial, small, clothed with a hir- 

 sute, persistent indusium. The long hairs of rachis 

 and costæ are rarely red and far more numerous 

 but thinner than in 1). heterotricha ; rachis upwards 

 especially densely hirsute, the edges densely ciliate. 



Kig. 36. D. heterotricha n. sj). Tlie 



second pinna from below x 'h, and 



segments seen from botli surfaces, 



244. Dryopteris Schwackeana Christ msc. n. sp. — Fig. 37. 



Type from Brazil: Minas Geraes, Ouro Preto, locis humidis, leg. Schwache 

 nr. 14892-14893 (C!). 



