166 GERANIACEA. 
1. Averrhoa bilimbi, Linn. Sp. Pl. p. 613; Cav. Diss. vii. t. 219. 
A native of Tropical Asia, extensively naturalized in hot countries. 
GuaTEMALA (Friedrichsthal). Hb. Kew. 
Tribe BALSAMINEA. 
Limited to the following genus and the monotypic Asiatic Hydrocera. 
6. IMPATIENS. 
Impatiens, Linn. Gen. Plant. n. 1008; Benth. et Hook. Gen. Plant. i. p. 277. 
A ‘genus of upwards of 150 (chiefly herbaceous) species, 130 of which inhabit the 
mountains of Tropical and Subtropical Asia, twenty the mountains of Tropical Africa, 
Madagascar, &c., two or three North America, and three or four Europe and North- 
eastern Asia. 
1. Impatiens, sp. 
SoutH Mexico, Xochialco (Hahn). Hb. Paris. 
Order XXXI. RUTACE. 
Rutacee, Benth. et Hook. Gen. Plant. i. p. 278. 
About ninety genera, comprising 700 species, are referred to this family. They are 
chiefly trees and shrubs, a few being herbaceous, and are generally dispersed in tropical 
and subtropical regions, but most numerous in South Africa and Australia. 
Tribe CUSPARIEA. 
About fifty species, belonging to nine genera, constitute this tribe, which is confined to 
America, and most numerously represented in Brazil. 
1. ERYTHROCHITON. 
Erythrochiton, Nees et Mart. in Nov. Act. Nat.-Cur. xi. pp. 151 et 165; Benth. et Hook. Gen. 
Plant. i. p. 284. 
Shrubs or small trees. Four or five species are known between South Mexico and 
Brazil. 
1. Erythrochiton lindeni, Hemsley. (Tab. XII.) 
Glabrum, foliis longe petiolatis unifoliolatis membranaceis lanceolatis acuminatis acutis integris, 
floribus in cymas parvas 2—4chotomas longissime pedunculatas dispositis, sepalis inzequalibus 
fere liberis lanceolatis acutis, petalis extus dense sericeo-villosis plus minusve coherentibus 
corollam tubulosam arcuatam formantibus, lobis brevibus apice patentibus, staminum 3 infe- 
riorum antheris vacuis. 
Frutex preter fleres glaber, ramis robustis ad apices tantum foliosis. Folia longe petiolata, uni- 
