6 RANU^XULACE.E. Clematis. 



ol)tuse or rounded at each end : flower and fruit essentially as in the preceding. — Mem. 

 Torr. Club, ii. 28, t. 3. C. ovata, Torr. & Gray, Fl. i. 8, not Tursh, fde Britton, 1. c. — Vir- 

 ginia to Florida. Notwithstanding the striking differences of foliage nearly related to the 

 preceding, intermediate forms occasionally occurring. One of these forms is regarded as a 

 hybrid by Dr. Britton. 

 C. COCCinea, Engelm. Leaves glaucous or pale, subcoriaceous ; leaflets roundish or broadly 

 ovate, obtuse or retuse ; veinlets at length conspicuously reticulated : calyx bright carmine or 

 scarlet, glabrous, otherwise as the preceding. — Engelm. in Gray, PI. Wriglit. ii. 7 (where the 

 char, is indicated) ; Hook. f. Bot. Mag. t. 6.594; Gray, Bot. Mag. under t. 6,594. C. Vtorna, 

 var. coccinea, Gray, PL Wright, ii. 7. C. Texensis, Buckley, Proc. Acad. Philad. 1861, 448, 

 & 1870, 135 ; Lavallee, 1. c. 63, t. 19. C. Pitcheri, Carriere, Rev. Hort. 1878, 10, with figure, 

 not Torr. & Gray. — Kocky and shaded banks, Texas ; first coll. by Wright, next by 

 Li?idheimei\^ 

 C. reticulata, Walt. Leaves coriaceous and exceedingly reticulated ; leaflets ovate to 

 oblong ; simple leaves or bracts of the peduncle oblong : sepals dull colored, externally 

 canescent. — Car. 156; Michx. Fl. i. 318; Torr. & Gray, Fl i. 10; Hook. f. Bot. Mag. 

 t. 6574; Lavalle'e, 1. c. 55, 1. 16. C. Viorna, var. reticulata, Kuntze, 1. c. 133. — Dry thickets, 

 S. Carolina to Alabama and Florida, and perhaps Texas. 



* * Calyx ovate or campanulate in anthesis, the upper part of the sepals soon recurved- 

 spreading and thin margined, the externally tomentose-canescent margins inflexed in the 

 bud, explanate in the flower, at least near the tip : herbaceous or nearly so. 

 -1— Freely climbing, and with the compound leaves of the preceding division, thiu or thiunish, 

 minutely pubescent or nearly glabrous. 



C. Pitcheri, Torr. & Gray. Leaflets from ovate or roundi.«h, or rarely subcordate to oblong, 

 reticulated (more coarsely and less conspicuously than in C. reticulata): usually a pair of 

 simple ovate sessile leaves on the peduncle or sul)tending three peduncles : calyx two thirds 

 to full inch long, dull purplish or violet, somewhat canescent or pu])erulent outside; the 

 inflexed margins of the sepals narrow and tardily explanate near the apex : persistent styles 

 either naked or very short-nlumose (in the original), the lower part and the akene pubes- 

 cent. — Fl. i. 10; Gray, PI. Fendl. 4, & Bot. Mag. under t. 6594; Wats. Proc. Am. Acad, 

 xvii. 317 ; Lavallee, Clem. 52, t. 15, var. Coloradoensis, a large flowered form. C. reticulata, 

 Gray, PI. Lindh. i. 3, & PL Wright, ii. 7, not Walt. C. Sargenti, Lavalle'e, 1. c. 60, t. 18, 

 a small-flowered form. C. Coloradoensis, Buckley, Proc. Acad. Philad. 1861, 448.'-^ — 

 S. ludiana to Missouri, and thence to Texas. (Mex.) 



Var. leiostylis, Gray, Bot. Mag. under t. 6594. Styles completely glabrous from 

 the first, except tlieir very base. 



Var. lasiostylis, Gray, 1. c. Styles villous or even short-plumo,se. 



Var,* Bigelovii, Bobinson, n. var.^ Leaves more compound ; leaflets glabrous, pale 

 and sometimes glaucous, scarcely or not at all reticulated, generally smaller and more cleft ; 

 segments obtusish or rounded : sepals lanceolate, usually more spreading than in the typical 

 form: tails of akenes plumose. — C. Bir/elovii, Torr. Pacif. R. Rep. vi. 61. C. Palmeri, 

 Rose, Contrib. U. S. Nat. Herb. i. 118. — New Mexico, Bigelow, Palmer, Greene, Mathews; 

 Arizona, Palmer. 



Var,* filifera, Robinson, n. var. Leaves considerably divided and leaflets rather 

 small and obtuse, as in the last, but more reticulated and more or less densely pubescent or 

 tomentose beneath: tails of the akenes very slender, nearly nak^d. — C. ^/;/em, Benth. 

 PL Hartw. 285. C. filifera, var. incisn, Hemsl. Biol. Cent.-Am. Bot. i. 2, a form with leaflets 

 more or less trifid. C. reticulata, Seem. Bot. Herald, 267, in part, not Walt. — Near the 



1 Also reported on Lookout Mt., Teiiii., by J, F. James, Bull. Torr. Cluli, x. 82. Doubtful 

 specimens collected by Heller, distributed as " C. Texana., Buckley," and mentioned in Contrib. 

 Frankl. & Marsh. Coll. Herb. i. 37, are apparently only a form of the same species. 



2 Add. syn. C. Virmia, var. Pitcheri, J. F. James, Clem. 5, C. Simsii, Britton, Mem. Torr. Club- 

 v. 158, and others, not Sweet, wliicb, being the S. cm-data, Sims, Bot. Mag. 1. 1816, was ace. to Gray, 

 Bot. Mag. under t. 6594, a foi-m of .S. crispa. 



3 C. Birjdnvii, Torr. was included in C. Pitcheri, var. lasiostylis, by Dr. Gray. In the light of later 

 material it .should have at least varietal distinction. 



