1922] Johnston: Undescribed Plants Mostly from Baja California 445 



Tifpe. — Pleasant Cailon, Panamint IMountains, California, ]\Iay 10, 

 1906, Hall & Chandler 6925. Sheet no. 100917 in Herb. Univ. Calif. 



This is a species most nearly related to C. racemosa, but differing 

 from it in its sessile or very short pedicellate calyx, and in the shorter 

 lived herbaceous stems. Excluding C. pterocarya, it differs with C. 

 racemosa from all other winged fruited species in having hetero- 

 morphous nutlets. The plant is known only from two collections in 

 the eastern part of the Mohave Desert of California. 



Cryptantha maritima var. pilosa var. nov. 



Specie! similis sed calyce pilis longe patentibus praedito. 



Type. — On stony ridges at Los Angeles Bay, Baja California, 1887, 

 Palmer 551. 



This well marked variant, characterized by its pilose calyx lobes, is 

 frequent in the deserts of southeastern California. From Logan, 

 Nevada, where collected by Kennedy, it ranges south to Santa Agueda 

 {Palmer 2142) in Baja California. 



Cryptantha racemosa var. lignosa var. nov. 



Fruticosa, laxe ramosa, 2-4 dm. alta; ramulis floriferissimis ; in- 

 florescentia laxe racemoso-paniculata, per omnes partes plus minus 

 aequaliter distributa. 



Type. — Panamint Cafion, Inyo County, California, ]\Iay 15, 1906, 

 Ball & Chandler 7034. Sheet no. 100892 in Herb. Univ. Calif. 



Typical C. racemosa, which ranges south into Baja California from 

 the southern part of the Colorado Desert, is replaced in the Mohave 

 Desert and in the northern part of the Colorado Desert by a slender 

 diffusely branched very fioriferous form, which I am here naming 

 variety lignosa. The new variety differs from the species in its loosely 

 racemose-paniculate, instead of racemose, inflorescence, and in having 

 its flowers distributed more or less completely through the plant and 

 not confined to a terminal cluster or a peripheral belt. Piper appar- 

 ently recognized the two forms of C. racemosa, but in attempting to 

 name them described the wrong plant; his C. suffruticosa (Proc, Biol. 

 Soc. Wash., 32:42. 1919) being typical C. racemosa. 



