74 
NEW SYLVA 
opulif. Dec. and many botanists. Var. glabra 
Hooker. Quite smooth, branches angular ci- 
nereous, leaves ovate trilobe, petiolate, dentate 
or crenate, corymbs terminal, bracts ovatoblong 
pedicels smooth, calix smooth obtuse, capsules 
smooth compressed at the end — Mts. of East 
Europe, Sibiria and Origon. Very distinct 
from the last by many characters, entitled to be 
a species, seeds obovate yellow. 
670. Physoc. tomentosa Raf. Sp. capitata 
Pursh, Eht. Sp. opulif. var. tomentosa Hook, 
fl. Leaves ovate sublobate, doubly dentate, re- 
ticulate and tomentose beneath, corymbs ter- 
minal crowded subcapitate on a long peduncle, 
calix tomentose — Origon, another distinct sp. 
blended by Hooker, altho’ distinguished by 
Pursh and others. The Sp. monogyna of Tor- 
rey is also reduced to Sp. opulif. by Hooker, 
while it is even a peculiar Genus ! See the next. 
671. EPICOSTORUS Raf. atl. J. page 144. 
Sp. monogyna Tor. rocky mts. 119. Eaton <^c, 
Sp. opul. var. monogyna ! Hook. fl. Calix cam- 
panil!. 5iobed, petals 5, stamens 26 inserted on 
a circular free torus or base monadelphous, pis- 
tils 1 or 2 stipitate, with a style, capitate stigma, 
capsules 1 or 2 compressed not swelled free 
villose bivalve trisperme. Habit of Physo - 
car pa, pedicels few , no bracts '. — Epic, monta- 
nus Raf. as above. Leaves rounded ovate base 
subcordate, subtrilobe, incise, dentate pubes- 
cent beneath, corymbs on short peduncles pau- 
ciflore, pedicels filiform calix obtuse pubescent 
— in the Origon mts. disc, by James, descr. by 
Torrey 1827, mistaken by Hooker since, ascer- 
tained by me in 1832, the generic name means 
20 on a torus. 
672. SCHXZONOTUS Raf. calix rotate 
