352 WILSON EXPEDITION TO CHINA 



ad 5 mm. longi, plerique glabri, basi bracteis parvis linearibus fere 

 glabris instruct! ; alabastra oblongo-subacuminata, circiter 5 mm. 

 longa, lobis sinistrorsum convolutis; calycis segmenta fere libera, 

 lineari-lanceolata, acuminata, pleraque glabra, 1-1.5 mm. longa, 

 intus basi interdum inter se squamula una minima instructa; corollae 

 lobi fere ad basim liberi, anguste lanceolati, acuti, 3-4 mm. longi, 

 glabri, saepe paulo contorti; gynostegium calyci aequilongum, sessile; 

 coronae foliola ut videtur minima, ad basim gynostegii affixa, 

 breviter gibbosa sed in floribus siecis difficile certe recognoscenda; 

 antherae breves, subquadratae, appendice brevi hyalino rotundato in 

 stigma inflexo coronatae; pollinia ut videtur erecto-patentia, circuitu 

 oblongo-subrotunda, translatoribus tenuibus curvatis patentibus brevi- 

 bus; retinacula fere rotunda, polliniis paulo minora; stigmatis caput 

 fere planum, medio paulo depressum. Folliculi ignoti. 



Western Szech'uan: Wench'uan Hsien, Min River valley, arid 

 places, alt. 1300 m.. May 3, 1908 (No. 2253; shrub 10-30 cm. tall). 



This plant looks like a Thesium and also somewhat resembles Cynanchum sibiri- 

 cum R. Brown, which has longer and broader leaves and shortly pedunculate inflores- 

 <cence. On account of the very small poUiniae which are included in the upper part 

 ■of the anthers I refer this species to Tylophora without being able to indicate 

 its relationship to any species hitherto described from eastern Asia or India. 

 The shape of the gynaeceum and especially of the anthers is somewhat similar to 

 those of T. cuspidata Zippel as represented by Decaisne on t. 10, fig. e in Ann. Sci. 

 Nat. s6t. 2, IX. (1838), but otherwise this species has very different leaves, in- 

 florescence and corolla-lobes. The corona seems to be very small, and it is most diffi- 

 cult to ascertain its exact form in dried specimens. 



DREGEA E. Mey. 



Dregea sinensis Hemsley in Jour. Linn. Soc. XXVI. 115 (1889). — 

 K. Schumann in Engler & Prantl, Nat. Pflanzenfam. IV. Abt. 2, 293 

 (1895).— Diels & Schlechter in Bot. Jahrh. XXIX. 544 (ut videtur pro 

 parte) (1900). — Diels in Not. Bot. Gard. Edinburgh, VII. 357 (PL 

 Chin. Forrest.) (1913). 



Western Hupeh: north and south of Ichang, alt. 30-900 m., 

 cliffs, etc., May 1907 (No. 682, climber 1.5-2.5 m. tall, flowers white 

 or pink); same locality, etc., November 1907 (No. 682''; fruits); same 

 locality, A. Henry (No. 3554; also probably No. 1767, type ex Hems- 

 ley); without exact locality, A. Henry (Nos. 6164, 6387; Hemsley also 

 mentions as co-types Nos. 3005, 3125, 3868). Western Szech'- 

 uan : Mupin, alt. 1300-1600 m., thickets, June 1908 (No. 682^; climber 

 1.5-2.5 m. tall, flowers pink); Mao-chou, arid places, alt. 1300-1600 



