117 



The typical plant from the West Indies — a low-spreading herb, 

 with small, ovate or ovate-rhombic leaves and very small twisted 

 loment — may possibly occur as introduced in the Southern States. 

 Distr. — Texas, New Mexico and Mexico. 



** Loment more or less distinctly stalked in the calyx. 

 II Joints of the loment nearly orbicular. 



X Joints small, very slender at the joints, leaflets i-i' long. 



12,- Meibomia Wislizenii (Engelm.). 



Desmodiiim Wislizenii, Engelm. in A. Gray, PI. Wright, i . 



53 (1852). 

 Meibomia Wislizenii, O. Kuntze, Rev. Gen. Plant, i. 198 



(1891). 

 Distr. — Arizona, Texas and Mexico. 



X\ Joints large, leaflets narrowly linear, loment mostly 5-jointed, wide at 

 the joints. 



34. Meibomia Arizonica (S. Watson). 



Desinodijini Arizonicum, S. Watson, Proc. Am. Acad. ,xx. 



363 (1885). 

 Distr. — Arizona. 



II II Joints of the loment oval. 



X Joints 27 ' long, leaves conspicuously yellowish green, lighter beneath. 



35. Meibomia Grahami (A. Gray). 



Desinodiiun Grahami, A. Gray, PL Wright, ii. 48 (1853). 

 Meibomia Grahami, O. Kuntze, Rev. Gen. Plant, i. 198(1891). 

 Distr. — New Mexico, Arizona and Mexico. 



XX Joints 2" long, leaves ovate, r-foliolate. 



36. Meibomia Wrightii (A. Gray). 



Desmodiiim Wrightii, A. Gray, PI. Lindheimer. Bost. Journ. 



Nat Hist. vi. 177 (1850). 

 Meibomia Wrightii, O. Kuntze, Rev. Gen. Plant, i. 198 



(1891). 

 Distr. — Texas, New Mexico and Mexico. 



XXX Mature joints about 4" long, leaflets light green, scabrous. 



2)7- Meibomia psilocarpa (A. Gray). 



Desmodiicm psilocarpum, A. Gray, PI. Wright, i. 48 (1853). 

 Meibomia psilocarpa, O. Kuntze, Rev. Gen. Plant, i. 198 



(1891). 

 Distr. — New Mexico and Mexico. 



