in 



style exserted; fruit 1 line lonj?. clavate, obtuse with oUnse ribs.-HillHide about 

 Alamos. Sept. !(> to 30. No. 714. In fruit and habit reaembling B. Palmeri, bnt 

 with larger flowers, more and longer stamens, etc. It resembles Palmer's speci- 

 men of B. Wrightii from Guaymas, in habit and pubescence, but has smaller fruit 

 and differs in number of stamens and larger flowers, etc. 

 Boerhaavia Sonorae, n. sp. Stems somewhat spreading, much branched above; 

 flowers in head-hke cluster, "crimson ": involucre i line long : stamen 1, rarely 

 2(?): style exserted, capitate; fruit clavate with tapering tip.— Alon"- water- 

 courses near Alamos. Sept. KJ to 30. No. 715. Seemingly the same species as 

 No, 172 of Palmer's 1887 collection from Guaymas. 

 Boldoa lanceolata Lag. A small shrub 2 to 3 feet high, with several stems. Flowers 

 "cream color."! Very common at Alamos and also Agiabampoon hillside, incanons 

 and valleys. Collected in fruit at Alamos. March 2i\ to April 8, and in fruit and 

 flower September l(j to 30 ; at Agiabaujpo, October 3 to 15. Nos. 310. 720. 



According to Mr. Hemsley there is some uncertainty whether this plant should 

 be called Salpianlhus arenarins 11. & 13. or as above, and we give here as far as 

 we know its bibliography: 



B. Jamolata. Lag. Nov. Gen. et Sp. 10. Koem & Schult. Syst. i. 522 Bot 

 Sulph. p. 1.55. DC. xiii. 2, 438. Biol. Cent.-Amer. iii. 8. 



S. arenarius H. & H. PI. ^.quiu. 1. 154 t. 44. H. B. K. Nov. Gen. et Sp ii 

 218. Poir. Illus. Suppl., 53G t. 906. 

 Telanthera stellata Watson. Proc. Amer. Acad, xsi, 43G. The typical form found 

 at Alamos, Sept. IG to 30. No. 7C0, with this and more common was found Var. 

 glabrata, n. var., a form with narrower leaves and white instead of straw-col- 

 ored glomerules, but in other respects apparently the same. No. 7G0a. 

 Dr. Palmer says lie saw it at Agiabanipo also. 

 Aristolochia brevipes Henth. Very common in bottom lands. Much used as a med- 

 icine. Near Alamos. March 2G to April 8. No. 329. 

 Iresine celosioides L. A climbing plant with large spreading panicles of flowers. 

 Collected along ravines and river banks near Alamos. March 2G to April 8 No" 

 389. 



Euphorbia (Poinsetia) tuberosa, n. sp. Seemingly a new species. Slender, deli- 

 cate plant about 1 foot high : leaves (lower) alternate, scattering, linear, 3 to 4 

 inches long, a line l)road : upper leaves verticzllate, a little broadened at base and 

 acuminate, bright crimson : flowers terminal, 1 to few; involucre 4-lobed; lobes 

 small, entire or 3-toothed: glands 4, large, cup-shaped: bracts purple, fimbriate: 

 styles bifid.— In ravines in the upper portions of the mountains. March 25 to 

 April 8. N^o. 35G. 



Commonly called " Contrayerba." A small tuberous-rooted plant. It is a med- 

 ical plant of much repute and is used in kidney and liver troubles. 

 Euphorbia florida Engl. Collected on gravelly bottoms near Alamos. Sent IG to 

 30. No. GIO. 



Euphorbia plicata Watson. Proc. Amer. Acad. xxi. 438. Stems 2 to 3 feet high. 

 The leaves fall as soon as they begin to dry. Eocky hills about Alamos. Sept 

 16 to 30. No. G31. ^ ■ 



Euphorbia florida Engl. On grassy bottoms around Alamos. No. 356. 



Jatropha angustidena Muell. Seeds 4 lines long, gray, spotted with brown. Ala- 

 mos. Sept. 16 to 30. No. G31). 



Croton (Eucroton) Alamosanum, n. sp. A small shrub 4 to 6 feet high, yonntrer 

 parts villose-pubescent : leaves oblong-lanceolate, 3 to 5 inches long, 1 to 2 inches 

 broad, almost sessile, densely stellate-pubescent, a little glandular at base ; stipules 

 orbicular, slightly dentate-glandular: racemes dense, at first spike-like, becoming 

 more or leas elongated, sometimes 4 inches long ; female flower more common at the 

 base, but sometimes t hroughout the racemes; calyx deeply 5-parted ; petal none; 



1 Eoem & Schult., says florea rubi. 



