116 
1. C. procumbens Cnuitz, Umbel. 77. More or less 
hairy: stems slender, spreading, 6 to 18 inches high: umbel sessile 
or peduncled, few-raycd ; rays 1 to 2 inches long; pedicels from 
4 lines long to almost wanting: fruit (in the type) narrowly 
oblong, 2^ to 8^ lines long, glabrous, contracted but not taper- 
ing at summit,' intervals broader than the ribs: seed-face deep!}' 
sxdcate. (Fig. 130.) 
New York to New Jersey and N. Carolina, and westward to Michigan, 
Iowa, Arkansas, and Mississippi. 
We consider this polymorphous species to include all our forms of 
Chmrophyllum. The only characters that can be used to separate them 
specifically must be di-awn from the beaking of the fruit, the size of the 
ribs, and the depth of the sulcus of the seed-face. Isolated specimens can 
be selected which seem distinct enough in these particulars, but a study of 
a great number of specimens from all regions shows an inextricable running 
together, and it seems impossible to draw specific lines. Characters that 
have been used to define species are found displayed on the same plant. 
Owing to intergrading forms oven varieties cannot in all cases be distinctly 
i. ■ . 
set apart, but the following extreme forms may, in some cases, be distin- 
guished from the specific type by means of mature fruit. 
Van Shortii T orr. & Gray, FI. i. 637, has more broadly 
oblong to ovate (often somewhat pubescent) fruit, not at all con- 
tracted at summit. 
Kentuekj' to Arkansas and Louisiana. 
Van Tainturieri C. & R. Bot. Gazette, xii. 160, has fruit 
tdpering at summit or beaked, ribs very prominent and much 
broader than the intervals, and seed-face with a shallower sulcus. 
(Fig. 131.) — C. Tainturieri Hook. 
From Florida to Texas. 
Van dasycarpum C. & R. 1. c., differs from the preceding 
variety in having pubescent fruit, with ribs prominent but nai- 
rower than the intervals. (Fig. 132.) — C. 'J'ai ntnrieri ^ var. dasy. 
carpum Hook. 
Texas (Hall 2()0, “pubescent form,” and Llndheimer (iK!) and Louis- 
iana, near New Orleans (Drummond IBG). 
41. OSMORHIZA Raf. in DC. Prod. iv. 232.— Glabrous 
to hirsute perennials, from thick aromatic roots, 1 to 3 feet high, 
with ternately decompound leaves, ovate variously toothed leaflets, 
involucre and involucels few-leaved or wanting, and white 
flowers in few-raycd and fcw-fruited umbels. — Inch Glycos- 
