288 PRIMULACE. 
sparingly in some regions; and the species are chiefly cencentrated in the north tempe- 
rate regions of the Old World. 
1. ANDROSACE. 
Androsace, Linn. Gen. Plant. n. 196; Benth. et Hook. Gen. Plant. ii. p. 682. 
Tufted herbs. About forty species, restricted to the northern hemisphere, and chiefly 
inhabiting the mountains of Europe and North India; one grows in the plain of Bengal 
down to the sea-level ; four occur in North America, whereof only one is endemic. 
1. Androsace occidentalis, Pursh, Fl. Am. Sept. i. p. 187; A. Gr. Synop. Fl. 
N. Am. ii. p. 60. 
Central North America, from the banks of the Missouri, southward through 
Cotorapo and New Mexico.—Norti Mexico, Tubac, Sonora (Parry). 
2. DODECATHEON. 
Dodecatheon, Linn. Gen. Plant. n. 200; Benth. et Hook. Gen. Plant. ii. p. 57. 
Only one species. 
1. Dodecatheon meadia, Linn. Sp. Pl. p. 207; DC. Prodr. viii. p. 56, cum 
spp. 2 ad 4; A. Gr. Synop. Fl. N. Am. ui. p. 57; Catesb. Carol. ii. t. 1; Bot. Mag. 
tt. 12, 3622, 5871. 
Nearly all over NortH America, including GuapaLuPs IsLanD, off the coast of Lower 
California.—Norta Mexico, within the old boundary on Mount Graham (Kothrock).— 
Also in North-eastern ASIA. 
3. LYSIMACHIA. 
Lysimachia, Linn. Gen. Plant. n. 205 ; Benth. et Hook. Gen. Plant. 11. p. 635. 
About sixty species, mostly inhabiting the temperate and subtropical regions of the 
northern hemisphere, and a few occurring in South Africa, Australia, the Pacific 
Islands, and South America. 
1. Lysimachia glaucophylla, Hook. et Arn. Bot. Beech. Voy. p. 306, t. 68. 
“ Mexico,” without locality (Beechey). Hb. Kew. 
We suspect, from its affinity to L. lubinioides, a native of North-Eastern Asia, that 
this is a native of the same region, probably of the Bonin Islands, 
4, CENTUNCULUS. 
Centunculus, Linn. Gen. Plant. n. 145; Benth. et Hook. Gen. Plant. i. p. 687. 
Two or three species of diminutive herbs, widely dispersed in temperate and warm 
countries. 
