312 66 



scales, which can also be found on the basal part of the midrib of the pinnæ 

 beneath: it also differs in its sori, which are placed below the middle of the vein; 

 when young they are round but show later a tendency to be oblong. Leaf grass- 

 green, herbaceous, downwards suddenly reduced with 4—5 pair of very small, 

 auriculiform pinnæ (type V), finely pubescent on the upper surface, sparsely 

 hairy on costæ and costulæ beneath. Pinnæ with squamiform aërophore and 

 incised scarcely more than halfway down to the midrib. Segments obtuse, often 

 toothed at their apex. 



57. Dryopteris corazonensis (Bak.) C. Chr. Ind. 258. 1905; Hieron. Hedwigia 



46: 336. 1907 — [Fig. 36]. 



Syn. Nephrodium corazonense Baker, Journ. Bot. 1877: 163; Sodiro, Crypt. vasc. 

 quit. 238. 1893; Aspidium Corazonense Christ, Farnkr. 254. 1897. 



Type from Ecuador: Corazon, leg. Sodiro (HC!). - Pichincha, Stübel 

 n. 765 (HB). 



A magnificent species. Resembles in habit D. sagittif'olia (Bl.) O. Ktze. from 

 Java, especially in its numerous (about 10) pairs of suddenly reduced pinnæ, which 

 are 1 — 2 cm. long and broad and lobed. It comes next to D. Moritziana and D. 

 Germaniana, differing from both in pubescence. Stem and rachis rather densely 

 clothed with narrow, more than 1 cm. long, red-brown scales and densely and 

 shortly pubescent. Pinnae c. 20 cm. long by 2'/2 cm. broad, subopposite, on the 

 upperside along costa densely setose, along the veins with solitary long setæ and 

 between the veins densely and shortly pubescent with adpressed hairs; on the 

 underside along costæ, costulæ and veins setose, between the veins with short, 

 patent hairs. Pinnæ incised to a wing 3 — 4 mm. broad; segments closely placed, 

 at base 5 mm. broad, entire, a little obliqiie, obtuse or subacute. Veins 10 — 12 

 (according to Sodiro 15). Sori a little above the middle of the vein; receptacle 

 setose; indusium not found. 



58. Dryopteris diplazioides (Desv.) Urban, Symb. Antill. 4: 21. 1903. 



Syn. Gymnogramma diplazioides Desv. Mém. Soc. Linn. Paris 6: 214. 1827; 

 Bak. Syn. 377; Phegopteris diplazioides Mett. Ann. sc. nat. V. 2:241. 1864; Leptogramma 

 diplazioides Und. Bull. Torr. Club 29: 626. 1902; Nephrodium diplazioides Hieron. 

 Engl. Jahrb. 34: 445. 1904; Gymnogramme polypodioides Link, Hort. Berol. 2:50. 1833 

 (non Spreng.); Grammitis Linkiana Presl, Tent. Pter. 209. 1836; Leptogramma Linkiana 

 J. Sm. Journ. Bot. 4: 52. 1841; Gymnogramme Linkiana Kze. Linnaea 18: 310.1844; 

 Phegopteris Linkiana Mett. Fil. Lips. 82. 1856; Christ, Farnkr. 273; Nephrodium Link- 

 ianum Diels, Engl. u. Prantl, Nat. Pflanzenfam. 1^: 172. 1899; Leptogramme rupestris 

 Klotzsch, Linnaea 20: 415. 1847; Gymnogramme rupestris Kze. Linnaea 23: 256. 1850. 

 Phegopteris rupestris Mett. Fil. Lips. 82. 1856; Dryopteris rupestris C. Chr. Ind. 290. 

 1905. — Phegopteris Duchassaigniana Fée, 11 mém. 57 t. 14 fig. 3. 1866. 



I have seen no authentic specimen of this species, recorded from most coun- 



