FLORA OF THE CAPE REGION. II3 



13. Cleome tenuis Watson. The leaves, differing 

 from the five-leaved forms of Guaymas, are usually near- 

 ly all trifoliolate. — San Jose del Cabo. 



14. WiSLizENiA REFRACTA Engelm. Ver}' abundant 

 on the saline flats about La Paz. 



15. Helianthemum glomeratum Lag. High mount- 

 ains of the Sierra de la Laguna. 



16. Lechea Drummondii T. & G.? — Summits of the 

 high mountains of the interior. Stamens 3; outer sepals 

 longer than the capsule. 



17. Ionidium fruticulosum Benth. Perennial. — To- 

 dos Santos, La Paz, San Jose del Cabo. 



18. Ionidium riparium HBK. x\nnual, puberulent ; 

 flowers solitary, ochroleucous ; petals nearly equal. — 

 Common about San Jose del Cabo. 



19. Amoreuxia Wrightii Gray. Single specimen 

 2j4 dm. high with perfectly ripe fruit. Capsules 50-55 

 cm. long, pubescent with many longitudital veins, which 

 are prominent internally: the whole plant marked by 

 minute red often linear punctci?. Capsule much more 

 acuminate than in the published plate, pi. Wright 3. The 

 stout somewhat sigmoid peduncle is deflexed ; the ovules, 

 of which very manv are abortive, are in several rows in 

 each cell: the seeds exactly globular, about 5 mm. in 

 diameter, dark brown, the arilliform outer covering 

 minutely wrinkled, closely conformed, sparsely covered 

 with white hairs, and marked by a linear elevated raphe 

 which extends from the microp3de to the chalaza, j-j, the cir- 

 cumference of the seed; the testa is smooth and shining, 

 thick and hard, perforated at the micropyle, the opening 

 filled by a conical obturator, brown tipped with white, 

 nearly i mm. long, visible as a white spot on the surface; 

 tegmen light brown, not separable from the endosperm. 



