( 28 ) 
490 
POLYTRICHADELPHUS INTEGRIFOL 1 US C.M., n. Sp. Unduavi, IOOOO 
ft. October, 1885 (3159a). 
Stems 5-8 cm. high, leafless below and tomentose, proliferous 
at apex; leaves erect, slightly spreading, vein broad, excurrent 
into a smooth, dark awn; margins entire, incurved; lamellae 
seven, rows of cells high, uppermost cells rounded in section. 
Dioecious. Perigonial bracts scarious, with short triangular 
points. 
Male plants only collected, and from the robust stems and 
broad, scarious, perigonial bracts it strongly resembles Polytri - 
chum. Compared with various species of Polytrichadelphus at 
Kew, none of which it resembles. 
Pogonatum oligodus Kze. Near Yungas, 4000 ft. 1883 (3157). 
Pogonatum tortile Sw. Near Yungas, 4000 ft. 1885 (3158). 
Agrees with specimens so named collected by Matthews in 
Peru. 
Polytrichium juniperinum Hedw. Sorata, 13000 ft. February, 
1886 (3156). 
Polytnchmn cuspidigerum Sch. Teste C. Muller. Unduavi, 
18000 ft. October, 1885 (3156c). 
Plants 5-8 cm. high; stems naked below, densely leafy above; 
leaves erect-appressed, almost imbricate when dry, 5 mm. long, 
margins serrate with a few large, coarse, teeth; lamellae filling 
almost all of the blade, margins only slightly incurved. Periche- 
tial leaves longer, erect, innermost with a scarious base and long, 
slender tips; pedicel 15-25 mm. long; capsules 3 mm. long with 
a small hypophysis; teeth lax, short, pale and regular. 
No specimens bearing this name can be found in Schimper’s 
Herbarium at Kew. 
Polytrichum aristiflorum Mitt. Unduavi, 8000 ft. October 
1885 ( 3 ; 55 a). 
This species has also been collected at Yungas by Pearce 
There are a great many diverse localities cited for this species by 
Mitten, and there is as much diversity in the specimens at Kew. 
We referred all of Dr. Rusby’s specimens from Yungas, nos. 3155b 
and c and no. 3155a from Sorata and 3155c from Mapiri to this 
species, but Dr. Muller gave it a manuscript name, which is ante¬ 
dated by P. patulum Harvey (MU 11 . Syn. Muse. 1: 210) from Ne- 
paul. It seems probable that there is room for the separation of 
several species, but as ours agree with Jameson’s from the Andes 
