444 University of California Puhlications in Botany [Vol. 7 



Mentzelia tricuspis var. brevicornuta var. nov. 



Lobis latoralibns antherarum oblongis, rotnndatis, minus 0.5 mm. 

 latis. 



Type. — Barstow, San Bernardino County, California, ^lay 14, 1903, 

 K. Brandegce. Sheet no. 108381 in Herb. Univ. Calif. 



The species is unique in the section Bicuspidaria because of its 

 pedicellate flowers and petiolate leaves and bracts. It ranges from 

 Utah and Arizona into the eastern part of the Mohave Desert in Cali- 

 fornia. The variety brevicornuta is the form which the species assumes 

 near its western limit in the vicinity of Barstow. In typical tricuspis 

 the lobes of the filaments are linear and 2 mm. long at least ; but in the 

 new variety the lobes are short oblong and only about 0.5 mm. long. 

 Mentzelia tricuspis has been frequently misidentified as M. reflexa 

 Cov., no doubt because its fruits are reflexed and appear much as those 

 illustrated in Coville's (Contr. U. S. Nat; Herb., 4:108, t 9. 1893) 

 plate of reflexa. Mentzelia reflexa is not even closely related to M. 

 tricuspis and can be recognized by its smaller corollas and unlobed 

 filaments. 



The species and varieties of ]\Ientzelia which make up the section 

 Bicuspidaria may be distinguished by the following key. 



Flowers pedicellate; upper leaves and floral bracts petiolate 



Lateral lobes of anthers linear, acute, 2 mm. long or more M. tricuspis 



Lateral lobes of anthers oblong, rounded, about 0..5 mm. long 



M. t. brevicornuta 

 Flowers, upper leaves, and floral bracts sessile 



Floral bracts white and scarious, with green midrib and margin 



Petals small, 1.5-2..5 mm. long M. involucrata 



Petals large, 3.5-4..5 mm. long M. i. megalantha 



Floral bracts green, not at all scarious 



Middle lobe of anthers equalling or shorter than lateral ones 



Corolla pale yellow; leaves 7-] 2 mm. wide, thickish, deeply lobed 



M. hirsutissima 

 Corolla orange-yellow, leaves 10-20 mm. wide, thinner, coarsely toothed 



M. h. nesiotes 

 Middle lobe of anthers twice the length of lateral ones....M. h. stenophylla 



Crjrptantha inaequata sp. nov. 



3—4 dm. alta, caulibus ramis laxe ramosis; foliis planis, lineari- 

 oblaneeolatis, 2-4 cm. longis; inflorescentia laxe racemosa. 4-12 cm. 

 loiiga ; calyce fructifero 2.5-3.0 mm. longo, lobo abaxillari maximo 

 hispidissimoque ; pedicellis brevibus denum 0.1 mm. longis; nuculis 4, 

 lieteromorphis. subtrigono-ovatis, acute marginatis; nuce larga quam 

 gynobasi longiore, 1.7 mm. longa, sulco supra medium clauso inferne 

 dilatato areolam triangulam formante. 



