402 PROCEEDINGS OP THE AMERICAN ACADEMY 



that has been referred to this species appears to belong to G. graci- 

 lis, Bartl., with lanceolate acute leaves and acute sepals, — including 

 2149 Berlandier, 130 Ervendberg, 10G5 Palmer (1878-79), and the 

 G. glauca of the West Indies. 



Heteropterys Portillana. a tall climber, the branches dotted 

 with numerous white tubercles and sparingly appressed-pubescent or 

 glabrate : leaves thin, oblong-ovate or -lanceolate, shortly and acutely 

 acuminate, mostly rounded at base, 2 to 4 inches long and 1 to If 

 broad, slightly appressed-hairy, becoming glabrous on both sides, bi- 

 glandulai" on the lowest lateral veins ; petioles (3 lines long) pubes- 

 cent, often with 2 stipitate glands ; panicles axillary and terminal, 

 exceeding the leaves, the dense appressed pubescence ferruginous ; 

 pedicels mostly umbellate, 4 to 6 lines long, jointed below the middle : 

 calyx rather thinly pubescent or glabrate ; petals salmon-color without, 

 scarlet within, oblong, sagittate or truncate at base with a broad claw, 

 2^ lines long : ovary densely pubescent. Barranca. (112.) 



Tetrapterts Mexicana, Hook. & Arn. Barranca. (101.) 



Gaudichauuia mollis, Benth. In respect to flowers and foliage 

 identical with Hartweg's specimen. The fruit now collected is pecu- 

 liar in this genus, the marginal wings of the 2 or usually 3 carpels 

 being scarcely at all developed. Rio Blanco ; July. (153.) 



OxALis LATiFOLiA, HBK. Flowcrs rose-color. Rio Blanco, in 

 rich wet bottoms ; June. (67.) 



OxALis DECAPHYLLA, HBK. Flowers rose-color. Rio Blanco; 

 June. (68.) 



OxALis Hernandezii, DC. Flowers white. Rio Blanco, in 

 similar localities; June. (69.) 



BuRSERA BiPiNNATA, Engler. A compact tree, 12 feet high. (99.) 



Bursera Kerberi, Engler. A tree with kvf branches, about 16 

 feet high and a foot in diameter, covered with loose bronzy papyra- 

 ceous bark. Tequila. (423.) 



Bursera Palmeri. Near B. cuneata, a shrub, 5 feet high, with 

 numei'ous stiff lateral branches : leaves densely tomentose beneath, 

 more loosely pubescent above ; leaflets 3 to 5 pairs, lanceolate, acute 

 or shortly acuminate, rounded (the terminal cuneate) at base, acutely 

 serrate, somewhat rugose above, the lateral veins prominent beneath, 

 1 or 2 inches long, the winged internodes of the rhachis 1 to 4 lines 

 broad : peduncles very short or none ; pedicels 2 to 4 lines long : fruit 

 ovate, acute, glabrous, 4 lines long ; nutlet orange, often tipped with 

 black when mature. Rio Blanco, in deep caiions ; September. (609.) 

 — Differing from B. cuneata especially in its acuter leaflets, rounded 



