x 
JOY 
[494] TRANS. OF THE ACAD. OF SCIENCE. 44 
shorter than in any other form of the species.—Fezogl, Cor- 
dofan, Figari! in rent. 
40. C, cutorocarpa, Engelm.! in Gray Man. ed. 1, p. 350 ; 
! h 
Tatnall !—Closely allied to the last species, especially to var. 
evifiora ; the principal difference lies i i 
acute lobes of calyx and corolla. Flowers usually 4-parted, 
species growing in the same region. Seeds 0.8 line long, 
pressed, scarcely angled; transverse hilum rather 
shorter than in the last species, 
41. C. arvensis, Beyrich! in sched.; Engelm.! in Gra 
Man. ed. 2, p. 336.—The different varieties of this species are 
characterized i i 
those of the next species; lobes of calyx very obtuse; lobes 
of corolla almost nsuads be longer than the tube, acute or usual- 
y i and with the point inflexed; anthers 
broadly oval or rounded; scales large, deeply laciniate-fim- 
briate, often exceeding the tube; styles rather slender, as long 
as ovary, or longer; seeds 0.5-0.7 line long, oval or rounded, 
compressed, with a rather short, linear, often oblique hilum. 
e differences in the shape, size and texture of the calyx 
constitute the following varieties. 
Var. a. PENTAGONA; C. pentagona, Engelm.! in Sill. Jour. 
43, p. 340, t. 6, f. 22-24; DC. Prod. IX. > C. arvensis, 
Beyrich! in Hb.; C. globularis, Nutt.! in Hb.—Cal i 
and shining ; lobes orbicular, as long or longer than the shallow 
tube of the corolla, forming, where they join, 5 projecting 
angles.—Dry barren soil or old fields on different Camacatae 
* The article on American Cuscute, which originally appeared in Silli- 
man’s Journal, was reprinted in Hooker’s London Joartal ot Botany, IL 
184 t. 8, 1848, and in Schultz’s Archives de Flore, 1855, p. 65. 
