GREENMAN. — NEW ANGIOSPERMS FROM MEXICO. 79 



lobes oblong, 3 to 4.5 mm. long, slightly inflexed at the acutish tip, in 

 the later stages recurved : petals subreniform, entire, 2 mm. long, equally 

 broad, white : stamens as long as the petals ; filaments about equalling 

 the anthers: ovary glabrous: mature fruit not sten. — Mexico. State 

 of Guanajuato : mountains of Santa Rosa near the City of Guanajuato, 

 March, 1901, and 1902, Professor Alfredo Duges, no. ob'la (lib. Gr.). 



In the leaf-outline R. Dugesii suggests R. viscosisstmum, Pursh, of 

 western North America ; but the two species have quite different flowers 

 and pubescence. The affinity of R. Dugesii is evidently with R. cam- 

 panulatum, Humb. & Bonpl. in Roem. & Schultes, Syst. v. 500 (1819) ; 

 it differs, however, from this species in the character of the petioles, and 

 in the absence of a hirsute pubescence on the under leaf-surface. From 

 R. ciliafum, Humb. & Bonpl. 1. c. (R. joriillense, HBK. Nov. Gen. & 

 Sp. vi. 61) R. Dugesii is readily sejjarated by the more rotund, less 

 deeply and more obtusely lobed leaves. 



Cassia longicoma. Stems herbaceous, erect or nearly so from a 

 ligneous base, 1 to 3 dm. or more high, and as well as the petioles and 

 peduncles pubescent with short reflexed hairs with whieh are intermixed 

 long horizontally spreading pilose hairs : leaves 6-foliolate ; petioles 1.5 

 to 3.5 cm. long; stipules linear-setaceous, 4 to 9 mm. in length, pubes- 

 cent ; leaflets short-petiolulate, oblong or obovate-oblong, more or less 

 oblique, 1 to 4 cm. long, 0.5 to 2 cm. broad, rounded or obtusish at the 

 apex and short-mucronate, entire, densely appressed-pubescent on both 

 surfaces: peduncles axillary, 4 to 7.5 cm. long, mostly 3-flowered ; 

 pedicels about 1 cm. long : flowers nodding or erect, 1.5 to 2 cm. in 

 diameter when fully expanded ; sepals oblong, 8 mm. long, 3 mm. broad, 

 obtuse or rounded at the apex, the outer surface pubescent ; petals yel- 

 low, obovate, narrowed at the base into a short claw, rather conspicuously 

 3-5-nerved from the base ; perfect stamens 7, subequal ; staminodia 3 ; 

 ovary densely sericeous-pubescent : legume 6 to 8 cm. long, 5 to 6 mm. 

 broad, appressed-pubescent with somewhat scattered hairs : seeds ovate, 

 short-acuminate, 3 to 4 mm. in length, slightly corrugate-pitted, and 

 with a single central rather deep pit on either surface. — Mexico. 

 State of Morelos: Jojutla, altitude 1000 m., 12 June, 1901, and 30 

 August, 1902, C. G. Pringle, nos. 9674, 8665 (hb. Gr.). 



Cassia morelensis. Fruticose: stem and branches covered with 

 a grayish bark : ultimate branchlets terminating in a rather firm spine, 

 glabrous or sparingly appressed-puberulent : leaves small, including the 

 canaliculate subappressed-puberulent petiole 8 to 12 mm. long; leaflets 

 3-4-paired, short-petiolulate, obovate or oblong-obovate, 3 to 5 mm. long. 



