146 CALIFORNIA ACADEMY OF SCIENCES _ [Proc. 47H Ser. 
(no. 3513). CHATHAM IsL.: common, 900-1000 ft., (no. 
3514). James Ist.: James Bay, common in moist woodland 
at 2100 ft. (no. 3515). Further distr. Brazil. 
Psychotria L. 
P. angustata Anderss..( 1), 193:\(2)) 78, t. 9.1.1; Rob. (1). 
207.—CuHarL-Es Ist.: Darwin. Endemic. 
P. rufipes Hook. f. (3), 220; Rob. (1), 207,—ABINGDON 
IsL.: common bushes around 1500 ft. (no. 3517). ALBE- 
MARLE Ist.: Iguana Cove, Snodgrass and Heller; Villamil, 
common bushes in woodland around 500 ft. CHARLEs IsL.: 
occasional bushes in woodland around 1000 ft. CHATHAM 
Ist.: Wreck Bay, occasional bushes in woodland, 300-700 ft. 
INDEFATIGABLE IsL.: Academy Bay, bushes 5-6 ft. high above 
400 ft., one of the most common bushes in the open areas 
around 550 ft.; northwest side, occasional bushes at 450 ft., 
abundant above 700 ft. James Ist.: James Bay, occasional 
low bushes at 900 ft., more or less abundant in woodland 
above this elevation, forming dense thickets around the top of 
the mountain at 2800 ft., (no. 3523). Endemic. 
Relbunium Endl. 
R. hypocarpium (L.) Hemsl.? Biolog. Cent.-Am. Bot. II. 63 
(1881-1882). Valantia hypocarpia L. Sp. Pl. ed. 2, 149 
(1763).—Cuar es Isi.: rare at 1300 ft. (no. 3524). The 
specimen is sterile but agrees closely in other respects with 
specimens of this species in the Gray Herbarium. It is possi- 
ble that this may be the Rubia sp. which was collected on 
Charles Isl. by Darwin and was mentioned by Hooker f. (3), 
216. Further distr. Mex., W. Ind., S. Am. 
Spermacoce L. 
S. tenuior L. Sp. Pl. 102 (1753) ; Rob. (1), 207.—Cuatu- 
AM Ist.: Baur. JAMES IsL.: Darwin. Further distr. S. U.S., 
Mex., W. Ind., S. Am. 
CUCURBITACEAE 
Citrullus Neck. 
C. vulgaris Schrad. ex Eckl. & Zeyh. Enum. 279 (1836) ; 
Rob. (1), 207.—ALBEMARLE Ist.: Turtle Cove, near the 
