Ill 



manii, milking in nil live species for Mexieo. The following- key will 

 be helpful in separating" these species: 



* Leaves simple. 

 +- Leaves large, 5 to 10 cm. Jong, pubescent, pale. 

 Bseabeckia flava lirandegee, Zoe, 1:378, t. 1:2. 1891. 



Collected by T. S. lirandegee at S;in .lose del Cabo, Lower California, 1890. Only 

 known from this one collection. 



+- +- Leave* small, 2.'< to 5 cm. long, nearly glabrous, bright green, finely reticulated. 



Esenbeckia haitmanii Robinson iV Fernald, Proc. Am, Acad. 30 : 115. 1894. 



Type specimens collected by C. V. llartman, La Tinaja canyon, State of Sonora, 

 November 19, 1890 (No. 240), and since by Dr. Palmer near Culiacan, October 25 to 

 November 18, 1891 (No. 1801). 



* * Leaves ternate. 



— Leaflets very large, pubescent beneath, flowers feiv and large, sepals and petals not 



pel lucid-dotted. 



Esenbeckia macrantha Rose, sp. nov. Plate II. 



A tree 4.5 to f> meters high; young brandies and inflorescence silky-pubescent; 

 leaves alternate, long-petioled, 3-folioIato; leaflets large, oblong, 15 to 20 cm. long, 

 5 to 7.5 cm. broad, somewhat oblique at base, somewhat acuminate at apex, green 

 and shining above, paler and somewhat silky beneath, covered with small pellucid 

 dots, strongly veined; inflorescence paniculate; sepals 5, small, rounded; corolla 

 10 mm. broad; petals imbricate, pubescent without; stamens 5; disk very large, 

 slightly lobed. 



Collected by Mr. E. \V. Nelson in a canyon along wagon road 6 miles above Domin- 

 gnillo, State of Oaxaca, altitude 1,443 to l,b'07 meters, October 30, 1894 (No. 1831). 



Explanation op Plate.— Fig. I, flowering branch ; fig. !2, flower bud; fig. '.i, open flower; fig. 4, leaf; 

 tigs. 1 anil i, scale 5 ; figs. 2 and H enlarged. 



-*- +- Leaflets glabrous and smaller, flowers numerous and smaller. 



■n-Sepals and petals pellucid-dotted, petals while, seeds silver// and with a deep concavity 



at base. 



'Esenbeckia acapulcensis liose, sp. nov. Plate III. 



A small Iree, 6 meters high; stem 7.5 to 10 cm. in diameter, glabrous throughout; 

 leaves ternate; leaflets oblong to obovate, rounded at apex, somewhat tapering at 

 base into slender petiolules, t!.7 to 12.5 cm. long; flowers abundant, in a short, broad 

 terminal panicle; inflorescence pubemlent; sepals nearly orbicular, glabrous, dotted; 

 petals white, thin, (lotted; fruit flat-topped, o cm. broad, deeply 5-lobed, very much 

 ridged; seeds brownish. 



Collected by Dr. Edward rainier, in river bottoms near Acapulco, December, 1895 

 (No. 175). 



Very different from the two recently described species (JC. flava and E. hartmanii) 

 from western Mexico. It is nearest E. berlandieri of eastern Mexico. 



Explanation of Plate. — Fig. 1, flowering branch; lig. 2, flower; fig. 3, flower dissected; fig. 4, bud; 

 fig. 5, branch with fruit and leaves; fig. 6, fruit; fig. 7, seed; figs. 1 and 5, srale §; figs. 2, H, and 4 

 enlarged. 



++++ l'ctals spotted, seeds dull and with a mere scar al base. 



Esenbeckia berlandieri Rail 1. Adansonia, 10:151. 1S71. Plate III. 



Type specimens from woods near Tampico, Tamaulipas (Berlandier, No. 3125). 



'Since the above key was prepared Capt. John Donnell Smith has published E. 

 litoralis from Guatemala in the Botanical Gazette (23:242). I have not seen his 

 specimens but he states that it is most nearly related to E. acapulcensis. I should 

 judge that it is clearly distinct. 



