81 133 



Polgpodium gracilentum Jenni., Bull. Dept. Jam. n. s. 4: 129. 1897; Dryopteris 

 gracilenta C. Chr. Ind. 268, which I believed (Revision p. 294) to be 

 D. panamensis is not that species according to two pinnæ of the type- 

 specimen in the Jenman collection in New York Bot. Garden, kindly 

 sent me by Miss Margaret Slosson. It may be a distinct species, 

 allied to D. scalptaroides. The sori are apparently indusiate, but the 

 indusia are very small with long hairs, which nearly completely con- 

 ceal the young sporangia. 



68. D. silviensis Hieron.; C. Chr. Revision nr. 29. 

 Area: Colombia. 



69. D, scalpturoides (Fée) C. Chr., Revision nr.34, fig. 22; Smiths. Misc. Coll. 53: 381. 



Area: Cuba, Jamaica. 



70. D. concinna (Willd.) O. Ktze.; C. Chr. Rev. nr. 1 fig. 2; Smiths. Misc. Coll. 52: 369. 



Area: Guadeloupe, Jamaica, Cuba, Mexico to Ecuador. 



71. Dryopteris rufa (Poir.) C. Chr. Ind. 290. 1905. 



Syn: Polgpodium ruffutn Poir. Ene. méth. 5: 532. 1804. 



Type from Peru, Lima (Herb. Lamarck, Mus. bot. Paris!); another speci- 

 men from Lima, Watson nr. 818 (RB) is perfectly typical. 



In my "Revision" pag. 274 I suggested this to be the Chilene form of D. ar- 

 gentina, which is not the case. D. rufa is a distinct species, in general habit 

 resembling D. concinna and D. oligocarpa, well-marked by its setose sporangia 

 as in D. concinna, but rachis and costæ of both sides are sparsely pubescent by 

 short hairs, not densely pulverulent as in D. concinna; leaf otherwise glabrous. — 

 Lamina 40— 50 cm long by 10 cm wide, narrowed downwards as in the two species 

 mentioned; pinnæ opposite, firm; segments close, patent, acute; veins about 8 to a 

 side; sori about medial; indusium not seen. 



72. D. Stierii (Ros.) C. Chr., Revision nr. 2 fig. 3. 

 Area: Brazil, Rio Grande do Sul. 



73. Dryopteris blanda (Fée) C. Chr. Index 254. 1905. - Fig. 13. 



Syn. Phegopteris blanda Fée, 8. mém. 91. 1857. 



Phegopteris caespitosa Fourn. Mex. PI. 1: 89. 1872. 

 Polgpodium caespitosum Bak. Syn. Fil. 305. 1874. 

 Dryopteris caespitosa C. Chr. Index 256. 1905. 

 Type from Mexico, Mirador, leg. Schaffner nr. 222 (specim. auth. in Kew!). 

 A small species, not unlike small forms of D. oligocarpa, but the lower pinnae 

 not or very slightly reduced. — Rhizome erect or decumbent, small, scales very 

 few. Stipes very slender, 15 — 20 cm long, stramineous, glabrous. Lamina 12 — 15 cm 



1). K. 1). VIdensk. Selsk. Ski-., 7. K;ekUe, nalurvidensk. og mathcm. Afd. X. 2. 18 



