288 CONTEIBUTIONS FROM THE NATIONAL HERBARIUM. 



8. Sophia halictorum Oockerell, Bull. Torrey Club 25: 460. 1898. 



Type locality: Mesilla Park, New Mexico. Type collected by Cockerell. 



Range: New Mexico and northward. 



New Mexico: Santa Fe; Sierra Grande; Aztec; Las Vegas; Zuni; mountains west 

 of San Antonio; Organ Mountains; Mesilla Valley. Sandy valleys and diy plains, in 

 the Lower Sonoran Zone. 



A low spreading canescent plant with purplish stems, inconspicuous flowers, finely 

 divided leaves, even the uppermost pinnatifid, and copiously glandular-pubescent 

 inflorescence. 



9. Sophia andrenarum Cockerell, Bull. Torrey Club 28: 48. 1901. 



Type locality: Mesilla Park, New Mexico. Type collected by Cockerell. 

 Range: New Mexico and Arizona to Colorado and Utah. 



New Mexico: Mesilla Valley; Gray. Dry fields, in the Lower and Upper Sonoran 

 zones. 



9a. Sophia andrenarum osmiarum Cockerell, Bull. Torrey Club 28: 48. 1901. 



Type locality: Mesilla Park, New Mexico. Type collected by Cockerell. 



Range : With the species. 



New Mexico: Organ Mountains; Magdalena; mountains west of San Antonio; 

 Mesilla Valley; Alamo Viejo. 



This is similar to the species, but the inflorescence is not glandular and is pubescent 

 throughout with branched hairs. 



28. DRYOPETALON A. Gray. 



Annual, 30 to 60 cm. high, with runcinate clustered radical leaves, few and smaller 

 cauline ones, and corymbosely branching stems hispid below, ending in crowded 

 racemes of bright white flowers; petals 6 mm. long, the limb pinnately 5 to 7-lobed; 

 siliques terete, long and slender, crowded. 



1. Dryopetalon runcinatum A. Gray, PI. Wright. 2: 12. pi. 11. 1853. 



Type locality: Mountains, near Lake Santa Maria, Chihuahua. Type collected 

 by Wright (no. 1314). 



Range : Southern Arizona and New Mexico and northern Mexico. 



New Mexico: Organ Mountains. Canyons, in the Upper Sonoran Zone. 



The species is known to us in New Mexico only from the Organ Mountains, where 

 it is a common spring plant growing among the rocks. It should occur in the moun- 

 tains of the southwestern corner of the State, and probably does, but no collector has 

 been there at the proper time of the year to find it. 



29. CONRINGIA Link. Hare's-ear mustard. 



Tall glabrous annual with broad sessile entire clasping cauline leaves; flowers pale 

 yellow; pods long, spreading, linear, 4-angled; seeds oblong, in 1 row in each cell. 



1. Conringia orientalis (L.) Dum. Fl. Belg. 123. 1827. 



Brassica orientalis L. Sp. PI. 666. 1753. 



Conringia perfoliata Link, Enmn. PI. 2: 172. 1822. 



Type locality: "Habitat in Oriente." 



New Mexico: Des Moines {Standley 6215). 



A native of Europe, introduced into the United States. It seems to be well estab- 

 lished in this one locality in New Mexico. 



30. CAMELINA Crantz. False flax. 



Erect pubescent annual with entire or slightly toothed leaves, the cauline ones with 

 clasping auriculate bases; flowers small, yellow, racemose; fruit obovoid, slightly 

 flattened ; seeds several or numerous in each cell, marginless. 



