156 104 
Unknown species of Lastrea. 
The following species, of which I have seen no specimen, can with approxi- 
mate certainty be referred to the present subgenus. 
il 
6. 
10. 
it 
13. 
14. 
Aspidium Fischeri Mett. Aspid nr. 192. 1858; Dryopteris Fischeri C. Chr. Ind. 
266. — Brazil. — Closely allied to D. ptarmica. 
Phegopteris leptoptera Fée, Gen. Fil. 244. 1850—52. — San Domingo, DE 
Tussac. According to the description this has setose sporangia. Most likely 
it is identical with D. concinna. 
Aspidium sanctoides Fée, Gen. 292. — Guadeloupe, Ducuassaine. — In Ind. 
Fil. referred to D. opposita. FÉE compares it to D. sancta. 
Aspidium confluens Fée, Gen. 293. — South America, PaAMPLIN nr. 75. 
Fully indeterminable from the description alone. 
Aspidium pachychlamys Fée, 11 mém. 77 tab. 21 fig. 2. 1866. — Guadeloupe, 
L'HEnMiNIER. — A form of D. opposita? 
Nephrodium rigescens Sodiro, Cr. vasc. quit. 239. 1893; Dryopteris rigescens C. 
Chr. Ind. 289. — Ecuador, Corazon. — Near D. cheilanthoides? 
Nephrodium elegantulum Sodiro, Cr. vasc. quit. 243. 1893; Dryopteris elegantula 
C. Chr. Ind. 263. — Ecuador, valle de Pallatanga. — ? — 
Nephrodium longipilosum Sodiro, Sertula Florae Ecuad. series Il. 26. 1908 — 
Ecuador, Corazon. — May be a very hairy form of D. oligocarpa. 
Nephrodium cinereum Sodiro. |. c. — Ecuador, Corazon, a variety f inter- 
medium from Esmeraldas. A short-hairy species like D. concinna, but indu- 
sium persistent. 
Nephrodium basiattenuatum Jenman, Gard. Chron. March 17th. 1894; Bull. 
Bot. Dept. Jamaica n. s. 3: 20. 1896; Dryopteris basiattenuata C. Chr. Ind. 
254. — Jamaica, Mount Moses. — Probably near D. sancta. — According 
to Miss SrosowN this is apparently not in JENMAN’s type-herbarium in New 
York Bot. Garden, and it was also not found in Kew. 
Nephrodium crenulaeum Jenman, Bull. Bot. Depart. Jamaica n. s. 3: 68.1896; 
Dryopteris crenulaea C. Chr. Ind. 259. — Jamaica. — ? — Not in JENMAN's 
type-herbarium and not in Kew. 
Dryopteris Hassleri Christ, in Bull. l'Herb. Boiss. II. 7: 922. 1907. — Paraguay, 
HassLER nr. 9056 a. 
Dryopteris Rojasii Christ in Fedde, Repert. 6: 349. 1909. — Paraguay, HASSLER 
nr. 10514 a. 
Lastrea Cumingiana Pr. Epim. 37, 1849. — Chile, Cumine. 
