199t} .< CURRENT LITERATURE 183 
described as new. In a later publication he considers the resupinate forms 
in which yellow is the predominant color, presenting sixteen species of Poria, 
seven of which are new. 
BLAKE” has revised four genera of Compositae (Asteraceae) which are 
restricted in their distribution to the tropical and subtropical portions of 
North and South America, as follows: Acanthospermum (eight spp., three new), 
Flourensia (twenty-three spp., five new), Oyedaea (twelve spp., three new), 
and Tithonia (ten spp.). The revisions include full bibliography and lists of 
collections. 
KAUFFMAN'S has described a new genus (Isoachlya) of Saprolegniaceae, 
which is chiefly distinguished “by the presence of the cymose or Achiye 
mode of formation of secondary sporangia, coupled with diplanetic zoospores.”’ 
It includes three species, one of ou is new, the other two being trans- 
ferred from Achlya and Saproleg 
Naxkar® has published a detain monograph of the Pepcicliacess of 
Japan, including 7 genera, 91 species, and 33 ahora Phere the 15 new 
* species, there are numerous transfers frctdvtig new 1. 
Kuno” has published an enumeration of the Lables. 3 the Kurile Islands 
and Yezo Island, with full bibliography and citation of collections. The list 
includes 38 species, 7. among 21 genera. A new species is described 
in Teucrium and in Scute 
Brirron and Fase dese described a new genus (Neoabboitia) of Cacta- 
ceae, a treelike form previously named Cactus paniculatus Lam., and later 
Cereus paniculatus DC, It is a monotypic genus of Hispaniola, Aciliestad to 
Dr. W. L. Assotr.—J. M. C. 
Physical properties of protoplasm.—SerIrriz® has carried out microdis- 
section of protoplasm from a number of lower animals and plants, and his 
work leads to the following conclusions. (1) There is a plasma membrane on 
3 
, Light-colored resupinate Polypores. IV. Mycologia 13:171-178. 1921. 
4 BLake, S. F., Revisions of the genera euenap gta Agar Ovyedaea, 
and Tithonia. Contrib. U.S. Nat. Herb. 20: 383-436. pl. 23. 
*s KauFFMAN, C. H., Isoachlya, a new genus of the iis Amer. 
Jour. Bot. 8:231-237. pls. 13, 14. 1921 
% NAKAI, TAKENOSHIN, Touhase systematis Caprifoliacesrum Japonicarum. 
Jour. Coll. Sci. Tokyo 43: art. 2. pp. 139. 1921. 
7 Kupo, Yusuun, Enumeratio Labiatarum specierum varietatum fo: que 
in Insulis Kodlontbus et Insula Yezoensi sponte nascentium. Jour. Coll. Sci. Tokyo 
_ 43: art. 8. pp. 509. pls. 2. 1921. 
78 Britton, N. L., and Rose, J. N., Neoabbottia, a new cactus genus from His- 
paniola. Smithson. Miscell. Coll. 72: no. 9. pls. 1-4. 1921. 
9 SEIFRIz, W., Observations on some physical properties of protoplasm by aid of. 
microdissection. Ann. Botany 35:269-296. 1921. 
