338 BOTANICAL GAZETTE [ocToBER 
The young sori are perfectly concealed by large, appressed, thin, peltate 
scales, which in the mature sori appear as a lacerated, blackish network between 
the sporangia. This network (clathrate scales) is formed from the thin, 
peltate scales by the outer (surface) cell-walls having been dissolved, while 
the remaining cross-walls become thick and black. 
POLYPODIUM EILOPHYLLUM Diels.—P. Lewisii Christ, Nuov. 
Giorn. Bot. Ital. N.S. 4:97. pl. 2. fig. 1 (non BAKER).—No. go. 
Polystichum gracilipes sp. nov.—Species parva e grege 
P. deltodon (Bak.) Diels rhizomate erecto, squamis angustis fulvis 
sparse vestito. Stipitibus fasciculatis, gracilibus, ad 6 cm. longis, 
vix Imm. crassis, stramineis, versus basin squamis parvis ovato- 
acuminatis breviter fimbriatis onustis, sursum rotundis. Lamina 
lanceolata, simpliciter pinnata, to-15 cm. longa, vix 2 cm. lata, 
subtus pallide viridi, subcoriacea, rachi tenui, squamis parvis 
ovato-lanceolatis longe acuminatis fimbriatis deciduis praedita. 
Pinnis 20-25-jugis, approximatis, brevissime petiolulatis, quad- 
rangularibus, 8-1omm. longis, 4-5 mm. latis, basi posteriore 
cuneata anteriore auriculata, marginibus dentatis, dentibus cus- 
pidatis; pinnis inferioribus parum abbreviatis; pagina inferiore 
squamis minutis sparse obtecta. Soris inter costam et marginem 
medium tenentibus vel saepe costae magis approximatis; indusiis 
magnis, persistentibus, glabris, subintegris. 
Shensi: Tai-pei-shan, Purpom nos. 17 and 31. Closely related to P. 
lanceolatum (Bak.) Diels, from which it differs in its longer stipe, scaly rachis, 
auricled upper base of the pinnae, and large, persistent sori. Both edges of 
the pinnae bear about 5 cuspidate teeth each. 
Woopsia LANosA Hook. var. attenuata, var. nov.—A typ? 
differt: lamina versus basin sensim attenuatis; pinnis inferioribus 
minutis; stipitibus vix 2 cm. longa, lamina 5-6 cm. longa, 1 ™- 
lata; pinnis oblongis nec ovatis. 
Shensi: Tai-pei-shan, Purpom no. 19. Perhaps a new species. The 
whole frond is very densely covered with long grayish hairs, those of the 
rachis and costae beneath intermixed with some very thin, narrow, hyaline 
scales. The rather thick and short rhizome is densely clothed with broad, 
red scales, 
CoPENHAGEN 
