340 WILSON EXPEDITION TO CHINA 
var. acuta. The branches are perulate and the achenes villose. The latter char- 
acter we assume to be normal in Kuntze’s species, since he says nothing to the 
contrary. 
Clematis brevicaudata De Candolle, Syst. I. 188 (1818); Prodr. I. 
3 (1824). — Maximowicz in Bull. Acad. Sci. St. Pétersbourg, XXII. 
216 (1876); in Mél. Biol. IX. 592 (1876); in Act. Hort. Petrop. XI. 8 
(1890). — Franchet in Nouv. Arch. Mus. Paris, sér. 2, V. 166 (PI. 
David. I. 14) (1882).— Hemsley in Jour. Linn. Soc. XXIII. 3 (1886).— 
Pritzel in Bot. Jahrb. XXIX. 332 (1900). — Finet & Gagnepain in 
Bull. Soc. Bot. France, L. 533 (1903); Contrib. Fl. As. Or. I. 18 (1905). 
Clematis Vitalba, Y. brevicaudata Kuntze in Verh. Bot. Ver. Brandenb. XXVI. 
100 (Monog. Clem.) (1885). 
Western Hupeh: without locality, September 1900 (Veitch 
Exped. No. 1723); vicinity of Ichang, A. Henry (Nos. 4341, 4361). 
This species is widely distributed and is most polymorphic in character. The 
varieties described by us are strikingly distinct from the type, yet we cannot sepa- 
rate them specifically. 'The Hupeh material referred to the type differs from a 
specimen collected at Peking (Herb. Hance, No. 12703) in having more slender 
stamens with larger anthers, and darker colored plumes to the achenes. We are 
disposed to regard the Japanese C. Pierotii Miquel as a variety of this species. 
We strongly suspect, too, that some of the specimens referred by Finet & Gagne- 
,pain to C. parviloba, var. glabrescens really belong to C. brevicaudata. 
Clematis brevicaudata, var. tenuisepala Maximowicz in Act. Hort. 
Petrop. XI. 9 (1890). 
Western Szech'uan: Tu-ti-liang-shan, near Lungan Fu, thickets, 
alt. 2000 m., August 1910 (No. 4547; climber 3-4 m., flowers white). 
Our specimen agrees with Maximowicz’s description, except that the sepals are 
more pubescent. 
Clematis brevicaudata, var. lissocarpa Rehder & Wilson, n. var. 
Frutex scandens, 2-4-metralis ramulis glabris sulcatis. Folia 
majora ad 25 cm. longa, in sicco nigrescentia, bipinnata v. bipinnati- 
secta segmentis primariis 5-7, inferioribus longe petiolulatis trifo- 
liatis v. trisectis, superioribus simplicibus, folia ramulorum floriferorum 
saepe pinnata, foliolis 3-7; foliola ovata, rarius ovato-lanceolata, acu- 
minata, basi rotundata v. subcordata, rarius late cuneata, sparse supra 
medium serrata, rarius integra, 3-7 cm. longa et 2-3 cm. lata, supra 
ad venas sparse pubescentia, subtus glabra; petioluli primarii 1-3 em. 
longi, rarius longiores, secundarii ad 1 em. longi, terminalis longior; 
petioli 5-7 em. longi. Inflorescentiae axillares et terminales, plerum- 
que folio longiores, late paniculatae v. fere corymbosae e cymis trichoto- 
