NO. 2 GENTRY: LAND PLANTS 167 



escence, and by the cordate bases of the uppermost leaves. Standley's key 

 (C.N.H. 23:1337. 1926) does not make use of the important gland 

 character and the foliage feature he uses is applicable only to the reduced 

 leaves of the inflorescence; the stems and leaves of both species being 

 narrow^ly lanceolate and acute at the base. Although he reports B. vir- 

 gata as occurring in Baja California, it is doubtful if it actually occurs 

 there. Others in following his key have also assigned Baja California to 

 B.virgata, as Johnston (I.e. p. 1168) who attributed his collections 

 from San Nicolas Bay and Carmen Island to B. virgata, but states that 

 they have glandular calyces, which identifies them as B. Pahneri. 



Though these two species are closely related they appear to be geo- 

 graphically distinct and no intergrading forms have been seen by the 

 author. For the time being they should be kept distinct, or until such 

 time as adequate collections can be brought together for study. 



Berginia virgata Harv. in Benth. & Hook, Rev. Gen. PI. 2:1097. 

 1873. 



Guaymas, Sonora, January 23, Dawson 1004 ; February 9, Dawson 

 1075. 



Coastal and foothill regions in Desert Shrub and Thorn Forest of 

 Sonora from Puerto Libertad to the Rio Mayo country. A small slender 

 strictly or openly branched shrub about 1 m tall with lavender flowers. 



Carlowrightia californica Brge., Zoe 5:172. 1903. 



Punta Frailes, February 16, Dawson 1146. San Jose del Cabo, Feb- 

 ruary 17, Dawson 1196. 



Baja California, Sonora, and Sinaloa; type locality, southern Baja 

 California. Doubtfully distinct from C. cordifolia Gray, described from 

 southwestern Chihuahua and with a similar range on the mainland. 



Dicliptera resupinata (Vahl) Juss., Ann. Mus. Hist. Nat. Paris 

 9:268. 1807. 



San Carlos Bay, Sonora, February 8, Dawson 1071. 



Southern part of the California Gulf Region and south to tropical 

 America. 



Jacobinia candicans (Nees) Benth. & Hook, in Hook. & Jacks., 

 Ind. Kew. 1:1246. 1893. 



San Carlos Bay, Sonora, February 8, Dawson 1065. 



Common through the Thorn Forest of southern Sonora and Sinaloa, 

 thence southeast along the Pacific coast to southern Mexico ; type from 



