﻿TAB, XLIIL 



Trofidocaupum gracile. 



Char. Gen, Sepala oblonga, concava, basi ^qualia. Petala 

 obovato-subspatliulata. Filamenta nuda: Antherce subro- 

 tuntlae. G er men ohXowgum^ \n stylum attenuatum. Stigma 



obtusum. Siliqua lateraliter compressa, sessilis, polysperma, 

 valvis acute carinatis. Dissepimentum nullum ! — Herbae 

 parvcv^ annuce. Folia pinnatifida . Racemi foliosi. Flores 

 parviy albi. Siliquse erectce^ nunc breves^ subsilicubs^. 



T. gracile: annuum, parvum, glabiiusculum, foliis linearibus 

 pinnatifidis segmentis acutis, racemis foliosis, pistillo petalis 

 staminibusque breviore, siliqua linear! glabra. 

 Hab. Monterey, California. Mr. Douglas. 



The \QvSy race^ncs [(nvxixfi the appearance of axillary l-flowered 

 peduncles) and the singularly laterally compressed siliqua;, seem 

 to mark this plant as a new genus of the order Crucifene. But 

 the fruit, on the only specimens I possess, is quite immature. A 

 second species will be given at Tab. 52, L. scahriuscnlum, in 

 which the fruit is a little more advanced ; and in that, as well as 

 in the present instance, I find no dissepiment. If this character 

 is constant, it affords another mark of distinction. 



Fig. L Flower. / 2. Stamens and pistil / 3. Immature 



siliqua ; — magnified. 



