182 CALIFORNIA ACADEMY OF SCIENCES. 



Samolus Valerandi, L. — San Enrique, Las Huevitas. 



SiDEKOXYLON LEUCOPHYLLUM, Watson. — Cajon de Santa 

 Maria. 



BuMELTA, sp. — San Jose de Gracia. 



Fraxinus dipetala, Hook & Arn., var. trifoliata, Torr. 

 Las Huevitas. 



Fraxinus pistaci^folia, Torr.? — San Benito, San Jose 

 de Gracia. Sometimes a tree 30 feet high. 



Menodora scoparia, Engelm. — El Kancho Yiejo, San 

 Julio Canon. 



Apocynum Cannabinum, L. — San Enrique. 



Yallesia dichotoma, Kuiz & Pavon. — San Gregorio. The 

 same as Dr. Palmer's No. 32 from Muleje, with nearly 

 glabrous punctate leaves, very small flowers, and the horny 

 covering of the fruit underneath the sarcocarp, cribrose in 

 longitudinal lines, the ribs anastomosing near the apex. 



Vallesia laciniata. Shrubby 2-3 feet high with short 

 stiff branches, and light green leaves usually folding in dry- 

 ing: young growth densely, minutely pubescent, nearly 

 glabrous in age: leaves entire oblong-lanceolate, obtuse at 

 base, mucronately acute at apex, rather prominently pin- 

 nate-veined: 30-60 mm. long, 15-30 mm. wide, on petioles 

 5-8 mm. long : stipules and bracts laciniately cleft: peduncles 

 10-15 mm. long, simple or di-trichotomously once or twice 

 branched; cymes densely 15-25 flowered; pedicels 3-4 mm. 

 long : calyx cleft to the base with ovate-acuminate lobes about 

 1 mm. long: corolla 12-15 mm. long, the oblong-oval lobes 

 hairy at the base, nearly J the length of the tube, which is 

 hairy within: stamens nearly sessile, triangular, apiculate: 

 carpels of the ovary distinct, styles united but easily separ- 

 able, stigma above the ring-like thickened portion flattened, 

 2-lobed; ovules 10-15 in each carpel: drupe by abortion 

 usually only one, fleshy, white, oblong-oval 10-12 mm. long; 



