26 An Enumeration of Niihau Plants. 



Buphorbia Stokesii, sp. uov. 



Frutex 6 dm. altus; foliis oppositis, obovatis, turbinatis vel emarginatis, 

 carnosis, glabris, 4.2-4 cm. longis, 2.6 cm. latis, cum petiolis 5 mm. longis; 

 stipulis membraceis. Axillares, solitari cum pedicellis 1. 3-1.5 cm. longis; 

 involucro carnpanulato, glabro, 2 mm. longo, cum 5 glandulis latioris quam 

 altioris; lobis triangularis, tridenticulatis; staminodibus exsertis, bracteolis 

 divisis et timbris. Capsula glabra, 3 mm. longa; seminibus ovoidis, tetra- 

 gonis, scorbiculatis, cinereis. 



Type locality, near the beach at Kii, Niihau, H.I. J. F. G. 

 Stokes. January, 191 2. 



A low prostrate shrub 6 dm. high; with thick nodose branches, 

 sub-herbaceous at the ends. Leaves opposite, obovate, often 

 emarginate or turbinate, rather fleshy, glabrous, bluish green 

 above, paler beneath, 4.2-4 cm. long, 2.6 cm. wide; with petioles 

 5 mm. long. Stipules low rounded, membraneous. Flowers axil- 

 lary, single, on pedicels 1.3-1.5 cm. long. Involucre campanulate, 

 2 mm. long, glabrate; throat pubescent; glands 5, broader than 

 high; lobes triangular with three minute teeth. Staminiphores 

 exserted; bractlets about one-half the length of the staminiphore, 

 split and fimbriate. Styles short. Capsule glabrous, 3 mm. long, 

 on a short stalk. Seeds ovoid, tetragonous, scrobiculate, ash- 

 colored. 



This plant can be readily distinguished from all other species 

 of the multiformis group of these islands by the character of its 

 very different leaves. They are relatively much wider and more 



fleshy than those of other members of the group. 



[108] 



