164 112 



pendrioides, but it agrees in all characters with the other species of § Steiropteris, 

 and we here come upon an excellent illustration of the unnatural manner of ar- 

 ranging the species after the degree of cutting. Hooker's plate cited above is a 

 good figui-e of the species, and it is unnecessary to give here a new description. 

 Aërophore is not present. It differs from all pinnatifid species of Drgopteris by 

 the characters ascribed to § Steiropteris and from the other species of this group 

 by its pinnatifid, not bipinnatifid lamina. 



178. Dryopteris deltoidea (Sw.) O. Ktze. Rev. '2: 812. 1891. C. Chr. Ind. 261. 



Syn. Polypodium deltoideum Sw. Prod. 133. 1788 — (for other synonyms see 

 Ind. Fil.). 



Type from Jamaica; leg. Swartz (S! H). 



A well-known species, which is the type species of § Steiropteris. The pinnæ 

 of the lower half of the lamina are reduced to mere lobes, which are refle.xed and 

 auricled at the base. 



St. Thomas: Le Dru (H). 



Porto Rico: Eggers nr. 814 (B, C|, Sintenis nr. 1001 (S1, 2411 (B), 2033, 2256, 2873 (C) - Ventenat (H). 



Jamaica: Maxon nr. 915 (H W|„ 2907 (C, W). 



Cuba: Wright nr. 823 (B, S) - Palmer and Riley nr. 50(5 et 1028 (H|. 



Trinidad: Don (L). 



179. Dryopteris L'Herminieri (Kze.) C. Chr. Ind. 275. 1905. 



Syn. Aspidiuin L'Herminieri Kunze; Mett. Aspid. 85 nr. 285. 1858. 

 Aspidium trichophorum Fée, 11. mém. 81 lab. 23 fig. 2. 1866. 

 Nephrodium trichophorum Bak. Syn. 265. 1867 ; Jenman, W. Ind. and 



Guiana Ferns 215. 

 Dryopteris trichophora O. Ktze. Rev. Z: 814; C. Chr. Ind. 298. 

 Aspidium asperulum Fée, 11. mém. 80 tab. 23 fig. 1. 1866. 

 Dryopteris decumbens C. Chr. Ind. 261. 1905. 



Aspidium Capitcdnei Fée et L'Herm.; Fée, 11. mém. 80 tab. 22 fig. 3. 1866. 

 Nephrodium Holmei Bak. Ann. Bot. 5: 317. 1891. 

 Dryopteris Holmei C. Chr. Ind. 271. 1905. 

 ''Nephrodium clypeolutatum Desv. Prod. 258. 1827. 

 Type from Guadeloupe, leg. L'Herminier (B!). 



A distinct species resembling in size and general habit D. mollis and D. nor- 

 malis, but really a near ally of D. deltoidea and D. Leprieurii, showing all the 

 characters of § Steiropteris: 



The wide-creeping rhizome is clothed at the apex with brown scales, which 

 are lighter and thinner than those of D. deltoidea and D. lonchodes. The stipe is 

 15 — 20 cm long, glabrous or finely pubescent. Lamina 2'/2 — 4 cm long, 12—15 cm 

 broad, slightly narrowed downwards, membranaceous, grey-green or brownish. 

 Rachis, costæ and both sides and costules beneath densely villous by short, uni- 



