48 NORTH AMERICAN FLORA [Volume 24 



banner suborbicular-cordate, 3 mm. long, the claw 1.5 mm. long; blades of the wings obliquely 

 elliptic, with a rounded basal lobe, 3.5 mm. long, and with a single gland at the apex, the claws 

 1 mm. long; blades of the keel-petals broadly obovate, 4 mm. long; pod slightly exceeding the 

 tube of the calyx, obliquely obovate, pubescent and with many glands above, glabrous below. 



Type locality: Boca de Soledad. Lower California. 

 Distribution: Southern Lower California. 



7. Psorothamnus junceus Rydberg, sp. nov. 

 A shrub, with slender spreading branches, which are glabrous, densely and minutely dotted 

 with red glands, bright-green when young, yellowish in age; leaves 1-2 cm. long, early caducous, 

 glabrous and with scattered red glands; leaflets 1-5, oblong or narrowly oblanceolate, 1-1.5 

 cm. long; peduncles 5-10 cm. long; spikes subglobose, about 1 cm. broad; calyx-tube turbinate, 

 10-ribbed, with a row of 3 or 4 red glands in each interval, villous, 3 mm. long; lobes lanceolate, 

 the lowest fully 2 mm. long, the rest about 1.5 mm. long; corolla dark bluish-purple; blade of 

 the banner rounded-cordate, obtuse, 4 mm. long, with a single gland at the apex, the claw 2 

 mm. long; blades of the wings obliquely obovate, with a large rounded basal lobe, 5 mm. long, 

 with a single gland near the apex, those of the keel-petals similar but broader, glandless, 

 6 mm. long; pod similar to that of P. Emoryi. 



Type collected in the Esperanza Canon, San Pedro Martir Mountains, Lower California, June 

 27, 1905, Goldman 1178 (U. S. Nat. Herb. no. 565085). 



8. Psorothamnus scoparius (A. Gray) Rydberg. 



Dalea scoparia A. Gray, Mem. Am. Acad. II. 4: 32. 1849. 

 Parosela scoparia A. Heller, Cat. N. Am. PI. ed. 2. 7. 1900. 



A shrub, 0.5 m. high or more, with ascending canescent and conspicuously glandular- 

 pustulate branches; leaves simple, spatulate-linear or oblanceolate, 1 cm. long or less, can- 

 escent and glandular-dotted; peduncles 2-7 cm. long; spikes subglobose or oblong, 12-15 mm. 

 broad, dense; bracts lanceolate, 2 mm. long; calyx-tube turbinate, strongly 10-ribbed, with a 

 row of 2-4 glands in each interval, 2.5 mm. long, white-villous; lobes triangular, 1 mm. long; 

 corolla dark-blue; blade of the banner broadly oval, subcordate at the base and retuse at the 

 apex, usually with a single gland near the apex, the claw 2.5 mm. long; blades of the wings 

 oblong, with a rounded basal lobe, 5 mm. long, those of the keel-petals broadly obliquely obo- 

 vate, 5 mm. long, the claws of the wings and keel-petals 2 mm. long; pod obliquely obovate, 

 pubescent and glandular-dotted, glabrous only at the very base; body about equaling the calyx. 



Type locality: Jornado del Muerto, New Mexico. 

 Distribution: New Mexico, Chihuahua, and Coahuila. 



16. PAROSELA* Cav. Descr. PI. 185. 1802. 



Dalea Vent. Tabl. Veg. 3: 396, in part. 1799. Not Dalea Mill. 1754. 



Cvlopogon Raf. Jour. Phvs. 89: 97. 1819. ' 



Jamesia Raf. Atl. Jour. 145. 1832. 



Trichopodium Presl, Bot. Bemerk. 52. 1844. Not Trichopodium Lindl. 1832. 



Marina Liebm. Vidensk. Meddel. 1853: 103. 1853. 



Carroa Presl, Symb. Bot. 2: 25. 1858. 



Annual or perennial herbs, or shrubs, with more or less glandular-dotted branches, leaves, 

 and calyces. Leaves pinnately compound, with stipules and stipels, both (especially the latter) 

 often gland-like. Flowers racemose or spicate. Calyx campanulate, 10-ribbed and 5-lobed, 

 the lower lobe sometimes longer. Corolla of various colors. Banner inserted on the hypan- 

 thium, long-clawed, most commonly with a cordate or reniform blade. Wings and keel-petals 

 (the latter apparently lacking in 3 species) inserted on the staminal tube, usually below its 

 middle, the keel- petals slightly higher up than the wings; blades (unless otherwise stated) 

 obliquely obovate, with a rounded basal lobe on the upper side, those of the keel-petals usually 

 united along the lower edge at least towards the tip, in a few species distinct, those of the wings 

 usually distinct, very rarely adnate to the adjacent keel-petals. Stamens usually 10 or 9, 



* Manuscript prepared with the help of copious notes by Joseph Nelson Rose and drawings 

 made by the late Frederick Andrews Walpole. 



