Vail : Studies in the Asclepiadaceae 



666 



infolded lateral lobes : sticjma rounded at the apex, scarcely 

 conic : pollinia oblonj^ ; caiidicles broad and short, with a deep 

 orange-yellow spot alon<r the upper margin ; corpuscle large, 

 bright red. Fruit not seen. (/'4''- 4-) 



Type locality, Cartagena, U. S. Colombia. 



Guatemala : Patulul, Depart. Solola, alt. 3000 pp., Heyde et 

 Lux, <5j./p, January, 1894. 



Venezuela : near Tovar, Fcndlcr, lojj (in herb. Gray). 



5. Rouliniella lignosa sp. nov. 



A woody vine. Stems pale grayish-brown, glabrous : branches 

 2—3 dm. long or more, somewhat angled, minutely tomentulose in 

 hnes, becoming glabrate : leaves opposite, on petioles 1.5-4 cm. 

 long ; blades ovate or sub-lanceolate, cordately hastate, 3—6 cm. 

 long, gradually acuminate, rather thick, yellowish-green, glabrous 

 above, minutely pubescent on the veins beneath ; basal lobes 

 rounded, short, with an open sinus^ glaiidulose at the base of the 



midvein : peduncles longer 

 than the petioles, pubescent : 

 racemes slender, 5—7 cm. long, 

 exceeding the leaves, 9-15- 

 flowered : buds ovate : bract- 

 eoles very small, setaceous : 

 pedicels 7—9 mm. long, slender, 

 pubescent: calyx -segments 

 ovate-lanceolate, i mm. long, 

 puberulent with a minute gland 

 in each sinus : corolla 5 -parted 

 to near the base, dull yellowish- 

 purple, acute in the bud ; seg- 

 ments 6 mm. long, acute. 



Fig. 5. 



minutely hispidulous on the inner surface, with a callous ridge 

 within the membranous whitish revolute margins : crown 

 attached to the base of the column, 5-partcd to the base; seg- 

 ments very thin, with somewhat involute lateral margins, pro- 

 longed into a long-ligulate obtuse or truncate apex, which is nearly 

 as long a."^ the corolla-segments : anther-wings very narrow and 

 slender, not salient at the base : anther-tips ovate, inflexed over 

 the barely conic, obscurely 5-rayed stigma : pollinia broadly ob- 

 long-ovoid ; caudicles broad ; corpuscle obtuse at the apex. Fol- 

 licles not seen. {Fig. 5.) 



Mexico: State of Jalisco, Rio Blanco, i2)^6, Palincr, ji^ ; 

 (herb. Columbia University): ''Cynaiic/unii parvijlonun" Pavon, 



