OF ARTS AND SCIENCES. 63 



base: nutlet globose, nearly £ line broad: cotyledons thick, orbicular. 

 — Very common on sandy bottom* near Los Angeles Bay. (517.) 

 A flowering specimen collected by M. E. Jones at San Queutin is 

 probably the same, but is more woody and apparently perennial. 

 Heliotropium Curassavicum, Linn. Muleje. (15.) 

 Heliotropium phyllostachyum, Toit. On rocky mesas at 

 Guaymas. (232.) 



Krynitzkia axgustifolia, Gray. Tlie root was formerly used as 

 a purple dye by the Indians. On stony ridges at Los Angeles Bay. 

 (606.) 



KitYNiTZKiA ramosissima, Greene. Stony ridges, Los Angel 

 Lay. (551.) 



Ipomcea coccinea, Linn. Mountain ravines near Guaymas. | :!10.) 

 Ipomcea hederacea, Jacq. In ravines near Guaymas. (295.) 

 Ipomcea leptotoma, Toit. Very common about Guaymas. (231 .) 

 Ipomcea Bona-nox, Linn. River-banks at Muleje. (33.) 

 Ipomcea triloba, Linn., var., with glabrous calyx. Collected also 

 by Pringle in 1884 in Santa Cruz Valley, Arizona, and by Palmer 

 (213) in 1885 in Chihuahua. In hedges and ravines about Guaymas. 

 (306.) 



Ipomcea Palmeri. A vigorous climber, glabrous : leaves digi- 

 tately divided, on slender petioles, the 5 segments linear-lanceolate, 

 attenuate to each end, obtusish, 1 to 4 inches long: peduncles 1- 

 flowered, 2 to 4 inches long: calyx glabrous, becoming 1 }, inches 

 long, the sepals oblong, obtuse, chartaceous in fruit; corolla white, 2 

 inches long, with broad tube and rather narrow limb : anthers much 

 twisted, a little exserted : stigma biglobose : capsule globose, ! inch 

 broad, 4-valved, 4-seeded ; seeds very finely pubescent. — "Flowers 

 with the odor of Stramonium." Margin of a dry creek-bed near 

 Guaymas. (75.) 



Jacqtjemontia Prtnglel Gray, var. glabrescens, Gray. Flow- 

 ers "pale blue with white lines." Hills near Guaymas. ('-"•' I.) 



Jacquemontia Palmeri. An erect slender annual, or at length 

 somewhat climbing, simple or branched, a foot high or more, sparingly 

 soft-pubescent: leaves ovate, usually cordate at base, acute, punctate, 

 15 lines long or much less, rather shortly petiolate : flower- few (1 to 

 5), scattered on slender peduncles : calyx-lobes ovate-lanceolate, 2 to 

 2^ lines long; corolla blue, 3 or 4 lines lung: capsule globose, equal 

 the calyx, the four valves splitting equally to the base : seeds Bomewhat 

 roughened. — In shade in the mountains about Guaymas. (221 ) 

 EVOLVULUS LINIFOLIUS, Linn. Mountains about (iu.iyn: 'I.) 



