141 



flowers and ovaries, as well as smaller, narrower pods with a sharper curved beak. 

 The green pods of this species are often used as food, and are found for sale in the 

 markets of Acapulco, The tree is sometimes cultivated, and like some of the other 

 species of the genus is called "guage." 

 Leucaena niicrocarpa Kose, sp. nov. 



A Binall tree 6 meters high ; branches glabrous; pinnae 2 or 3 pairs; leaflets 3 to 5 

 pairs, large, elliptical to obovate, somewhat oblique, 2 to 4 cm. long, acute, rounded 

 at base, nearly glabrous; rachis hearing a gland at the insertion of the uppermost 

 and lowermost pairs of pinnae; legumes small, 7.5 to 12.5 cm. 

 long including the slender stipe (12 to 18 mm. long), 10 to 14 

 mm. broad, glabrous. 



Collected by Mr. T. S. Brandegee at Mirarlores, Lower Cali- 

 fornia, October 13, 1890 (No. 18(5). 



Mr. Brandegee says it is found among bushes between the 

 mountains and the sea. 

 Lychnis mexicana Hose, sp. nov. 



Stems slender, 3 to 6 dm. high, erect, more or less lanate, 

 especially above, not glandular; leaves linear, elongated; flow- 

 ers upon elongated peduncles, somewhat nodding; calyx ovoid, 

 5 toothed, 8 mm. long; sepals densely lanate on the margins; 

 petals 5, 8 mm. long, including the long narrow claw, oblong, 

 not bifid, sometimes with lateral teeth and then appearing some- 

 what 3-lobed, without crest, purplish; stamens 10; styles 5; 

 capsule longer than the calyx, splitting into 5 valves. 



Collected by Mr. C. G. Pringle in the Sierra de Ajusco, alti- 

 tude 3,215 meters, 1896 (No. 6156). 



'P4iis species much resembles L. druvimondii in habit but has 

 different calyx, pubescence, and petals and narrower leaves. 

 Mimosa caerulea Kose, sp. nov. 



Stems erect, 6 to 9 dm. high, without prickles and nearly 

 glabrous; leaves small; stipules linear, small; petioles 18 to 30 

 mm. long; pinnae 1 pair; leaflets 8 to 12 pairs, 10 to 16 cm. long, oblong, acnte, 

 glabrous on both sides and somewhat glaucous above, the margin with appreased 

 hairs; flowers in small heads, bluish; peduncles 2.5 cm. or less long, 3 to 4 in the 

 axils of the leaves; corolla 4-toothed; stamens 4, with rather broad and flattened 

 filaments- legume linear, 3.7 cm. long, constricted between the seeds, long-atipitate, 

 acuminate, glabrous except a few prickles along the margins, 3 or 4-eeeded. 



Collected by Mr. C. G. Pringle on foot hills above Cuernavaca, Morelos, altitude 

 1,968 meters, November 18, 1895 (No. 6200), and 1896 (No. 6385). 



' This species most resembles M. xanti Gray, but has glabrous legumes, etc. 

 Mimosa lacerata Kose, sp nov. * IGUKE o. 



A shrub 15 to 24 dm. high, much branched; younger branches somewhat puberu- 

 lent; prickles infrastipnlar, twinned, straight and stout; stipules linear, small; 

 leaves pubescent; pinnae 8 to 12, 12 to 24 mm. long; leaflets 15 to 20, minute, linear, 

 2mm. long; petiolule bearing 2 small glands; peduncles axillary, 2.5 cm. or less 

 long;' flowers capitate; stamens 10 (?); legume glabrous, flattened, stipitate, 3.7 to 

 8.7 cm. long ; valves 6 mm. broad, not articulated ; margin of legume nearly as broad 

 as valves, thin and unequally cleft (often to the middle) into sharp spiny teeth. 



Collected by Mr. E. W. Nelson from the vicinity of Piaxtla, Puebla, altitude 1,279 

 meters, November 24, 1894 (No. 2008); also by Mr. Pringle on limestone hills near 

 Tehuacan and Esperanza, altitude 1,968 meters, December 23, 1895 (No. 6247); fruit 

 also sent from Cuernavaca, 1896 (with No. 6384). 



This species is very remarkable on account of the peculiar broad lacerate margin 

 of the legume. The habit of the plant is much like that of \L acanthocarpa Hentli. 

 It should doubtless be referred to the section Acanthocarpae. 



Fio. 5. — Legume of Mi- 

 mota lacerata, show- 

 ing broad lacerate re- 

 plum : scale £. 



