Vol. I] STEWART— BOTANY OF THE GALAPAGOS ISLANDS 77 



decumbent bushes around dried pools in the interior of the 

 island (no. 1610). Charles Isl. : common bushes, forming 

 open thickets near the shore, and trees around 650 ft., (nos. 

 1611-1613). Chatham Isl.: Wreck Bay, occasional low 

 spreading trees in sandy soil near the shore (no. 1614). Dun- 

 can Isl.: occasional near the shore; at 1000 ft. it is very 

 abundant as prostrate and decumbent bushes, often covering 

 considerable areas on the floor of the crater; occasional at 

 1275 ft. The prostrate habit on the upper parts is probably 

 due to the wind, (no. 1668). Gardner Isl. (near Hood 

 Isl.): common bushes (no. 1670). Hood Isl.: common 

 bushes all over the island (nos. 1671-1673). Indefatigable 

 Isl. : southeast side, common bushes to 600 ft. (nos. 1674- 

 1675) ; northeast side, small stunted trees near the shore (no. 

 1676). James Isl.: James Bay, Snodgrass and Heller. 

 Jervis Isl. : occasional prostrate bushes at 1050 ft. (no. 

 1677). Seymour Isl., south: occasional bushes (no. 1678). 

 Further distr. S. U. S., Mex., S. Am. 



Rhynchosia Lour. 



R. minima (L.) DC. Mem. Leg. IX. 363 (1825). Dolichos 

 minimus L. Sp. PI. ed. 2, 1020 (1763). R. minima DC. 1. c. ; 

 Rob. (1), 154. — Abingdon Isl.: common to above 1000 ft. 

 The series of specimens from this island show well the 

 marked foliar differences which occur between individuals from 

 the dry and moist regions on practically all of the islands 

 where this species is found at low and high levels. The speci- 

 mens from the dry region have the leaflets villous on both sur- 

 faces, margins strongly reflexed, resin dots numerous and dark 

 brown in color, venation prominent on the under surface ; size 

 of leaflets, 5.5 by 7 mm. Specimens from above 1000 ft. have 

 the upper surface of the leaflets atomiferous, the lower softly 

 pubescent, margins but slightly reflexed, resin dots few and 

 amber colored, venation not prominent; size of leaflet, 31 by 43 

 mm. Specimens from 600 and 700 ft. show characters which 

 closely correspond with the specimen from 1000 ft. except that 

 the leaflets are smaller, (nos. 1679-1682). Albemarle Isl.: 

 Elizabeth Bay, Snodgrass and Heller; Iguana Cove, common 

 in the vicinity of the cove; Tagus Cove, abundant in open 

 areas in tufaceous soil all over the lower parts (no. 1683). 



