352 BOTANICAL GAZETTE [MAY 
tissime fimbriato. Faciebus hinc inde setulosis. Textura herba- 
cea, colore dilute viridi. 
Facie P. auriculati (L.) Prsl., characteribus P. craspedosori. 
Highly developed form of the type of P. craspedosorum (Aspidium Maxim.) 
Diels; distinguished by larger dimensions, elongated stipe, and very broad 
swollen scarious white indusia. It is surprising to see this species from two 
localities so widely separated as W. Hupeh and W. Szech’uan. 
AB.—Rocky places, Mupin, W. Szech’uan, 4000-6000 ft., August 1908, 
no. 2606; woods and rocks, Fang Hsien, W. Hupeh, 5000-6000 ft., Novem- 
ber 1907, no. 2600. 
Polystichum lacerum H. Christ, n. sp.—Rhizomate brevl, 
squamis brunneis lanceolato-acuminatis 3 mm. longis fimbriato- 
ciliatis vestito, foliis coespitoso-fasciculatis numerosis (12) stipite 
brevi 3-4 cm. longo, stramineo, sed iisdem squamis setulisque cum 
rachi abunde tecto, lamina 12-15 cm. longa 22 cm. lata lanceolata 
versus apicem acuminata breviter caudata et gemma munimé 
saepius abortiva terminata, versus basin vix angustata, pinata, 
sed pinnis infimis basi profunde et fere ad costam incisis, pa 
ca. 25 utrinque patentibus, inferioribus suboppositis, sessilibus, 
1 cm. longis basi 1.5 cm. latis cuneato-ovatis falcatis acutis, basi 
inaequalibus i.e., antice valde auriculatis, profunde lobatis, lobis 
ca. 5 utrinque, ovato-obtusis, rarius crenulatis. Soris magnis 
plerumque uniseriatis margini anteriori insertis,. brunneis, S¢s° 
tangentibus et subconfluentibus, indusio 0.5 mm. lato ob 
griseo tenuissimo, sporangiis arctissime adhaerente margine 
lacerato, demum evanescente. Textura herbacea, facie superior 
calva obscure viridi, inferiore hirsuta, pallidiore. 
Has.—Rocks, Mupin, 4000-6000 ft., August 1908, no. 2608. 
Member of the group of P. craspedosorum (Maxim.) Diels, of the 
habit, but with pinnae more scaly and more incised, and with the indusium 
more delicate and fringed. 
These three species (P. leucochlamys, P. craspedosorum, and P. lacerum) 
form a distinct group of Polystichum (CRASPEDOSORA), characterized ™" 
marginal sori inserted at the anterior border of the pinnae, by 4 broad an 
membranaceous indusium exceeding the sorus, and by the point of the ae 
liferous rachis. The best developed form of the group is P. leucochlamys; t : 
least developed is P. Jacerum. "These two seem peculiar to western and <— 
China, while the intermediate form, P. craspedosorus, extends throughov 
China to Japan and Corea. 
