356 BOTANICAL GAZETTE [aay 
o.5 cm. longis e verruca oriundis vestito. Stipitibus fasciculatis 
numerosis (ca. 12) tenuibus flaccidis stramineis 5 cm. longis, 
lamina 20 cm. longa 5.5 cm. lata acuminata basi aliquantulum 
angustata lanceolato-oblongo bipinnata. Rachi tenui parce setu- 
losa, planta caeterum calva. Pinnis 25-30 utrinque, alternis, 
approximatis, recte patentibus, deltoideo-ovatis acutis, petiolulatis 
basi inaequalibus i.e., pinnula basali anteriore aucta, 2 cm. longis 
basi 12 mm. latis, ad alam angustam incisis, pinnulis confertis 
sessilibus, infimis rarius subpetiolulatis, ca. 7 utrinque, oblongis 
subobtusis, basi subinaequalibus i.e., antice auctis, 1 cm. longis 
3 mm. latis, acute sed breviter serratis nec aristatis, soris rotundis 
vix 1 mm. latis brunneis ca. 4 utrinque, medialibus, haud con- 
fluentibus, indusio fugaci reniformi. Textura flaccide herbacea, 
colore obscure virente. 
Has.—Woodland, Mupin, 4000-6000 ft., August 1908, no. 2610. 
Affine A. demisso Christ in Fedde Repert. 5: 284. 1908. Insularum Jezo 
et Quelpaert, quod differt dentibus aristato-pectinatis. Planta humilis, A. ° 
anisoptero Christ aut Cystopteridi similis. 
Adiantum aristatum H. Christ, n. sp.—Rhizomate breviter 
repente, tenui, squamis subulatis atrobrunneis vestito. Stipite 
valido, erecto, tereti, atropurpureo nitido, laevi uti tota planta, 
I.5 mm. crasso 120 cm. longo. Fronde late deltoideo-ovata, basi 
rotundata, apice acuta aut obtusa, 13 cm. longa, g cm. lata, tripin- 
nata, pinnis pinnulisque imbricato-confertis, brevissime petiolatis, 
pinnis 6-10 atrinque curvato-ascendentibus inferioribus, deltoideo- 
ovatis, 8 cm. longis, pinnula basali anteriore rachi incumbente, 
segmentis latissime cuneato-flabellatis, antice semicircularibus, 
1 cm. latis, 8 mm. longis, papyraceo-firmulis, glauco-viridibus, 
antice profunde et creberrime aristato-serratis, dentibus deltoideis, 
dentibus usque ad ca. 24 numero. Nervis confertis flabellatis. 
Soris numerosis sed medio in margine segmenti solitariis rarissime 
binis i.e., partitis, usque ad 2 mm. longis 1.5 mm. latis, leviter 
curvatis nec sinu inclusis, indusio ochraceo firmo laevi. 
? Has.—Rocks, W. Hupeh, Fang Hsien, 3000-4000 ft., November 1907, 0- 
2674. . 
Of the group of A. venustum Don, which is essentially Chinese (DIELS 
Fl. Central China §:201. 1901), and which embraces half a score of species 
