516 MINNESOTA BOTANICAL STUDIES. 
T. Caulophylloides Smarz, Bull. Torr. Club, 25: 136. 
1898. 
Plant glabrous, 2 to 4 feet high, from a horizontal rootstock ; 
leaves on long petioles; leaflets deep green, firm, oval or broader 
than long, I to 2 inches long, glaucous beneath and with prom- 
inent nerves, bases variable, apically 3-5-sharp-lobed: flowers 
dicecious: akenes elliptic, 3 lines long, sharply ribbed, con- 
tracted at the base and stalked, style persistent, clubbed, % the 
length of akenes. Spring and summer. Mountains of Ten- 
nessee.—Allied to 7. corzaceum, but differing in the leaflets and 
the shorter club-shaped style (+). 
T. Coriaceum SMALL, Mem. Torr. Club, 4: 98. 1893. 
T. diotcum var. cortaceum Britton, Bull. Torr. Club, 
TS 363. © LOOr. 
Stem sulcate, somewhat branched, raising 3 to 4 feet from the 
yellow rootstocks : leaves 3 to 4 times ternate, rather short-peti- 
oled, lower petioles with stipule—like bases; leaflets coriaceous, 
broadly obovate, acutely toothed or lobed; bases variable ; veins 
prominent on the whitish under surface: flowers in a loose 
panicle, dicecious ; sepals and stamens whitish; anthers linear, 
longer than the slender filaments: pistillate flowers purple; 
akenes stalked, oblong-ovoid, 8—10-ribbed ; styles of less length, 
persistent. May-June. Mountains of eastern Kentucky into 
Virginia and north Carolina (ft). 
T. venulosum TRELEASE, 7. c., 302. 1886. 
T. campestre GREENE, Erythea, 4: 123. 1893. 
(?) TZ. Fendleri J. M. Macoun, Bot. Gaz. 16: 285. 1893. 
Allied to 7. déoccum: stem simple, erect, 10-20 inches high, 
glabrous, glaucous; bearing 2 to 3 long-petioled leaves above 
the base; leaves 3 to 4 times 3-parted; leaflets short-stalked, 
rather firm, rounded and lobed at the apex, veiny beneath: 
flowers in a simple panicle, dicecious, small; sepals ovate; 
stamens 10-20 on slender filaments; anthers oblong, slender 
pointed: akenes nearly sessile, 2 lines long, ovoid, tapering to 
a straight beak, thick-walled and 2-edged. South Dakota, 
westward and southward in the mountains. Introduced 1889. 
T. occidentale Gray, Proc. Am. Acad. 8: 372. 1872. 
T. dioicum var. oxycarpum Torr. Bot. Wilkes Exped. 
2E2 2) ST OSA: 
A 
