58 . BIXINEZ. 
9. Xylosma (Hisingera), var. preecedentis? 
Panama, Taboga, 650, and on the hills about Loxeria, 674 (S. Hayes). Hb. Kew. 
Order XV. POLYGALEZ. 
Polygalee, Benth. et Hook. Gen. Plant. 1. p. 134. 
Herbs, undershrubs, or erect or climbing shrubs, rarely trees, natives of temperate 
and tropical countries, and generally dispersed. There are about 400 species, belonging 
to sixteen genera. 
1. POLYGALA. 
- Polygala, Linn. Gen. Plant. n. 851; Benth. et Hook. Gen. Plant. i. p. 136. 
Herbs, undershrubs, or shrubs, spread over nearly all temperate and tropical countries, 
but rare in Australia. About 200 species. 
1. Polygala alba, Nutt. Gen. ii. p. 87. 
Louisiana, Texas, &c. to—Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry 
& Palmer, 39), valley of the Santa Cruz, Sonora (Smith), San Antonio de las Alanzales 
(Gregg), Zacatecas (Coulter, 725), Aguas Calientes (Hartweg, 30). Hb. Kew. 
2. Polygala americana, Mill. Dict. ed. 8, no. 7; DC. Prod. i. p. 330. 
Polygala caracasana, H. B. K., et P. rivinefolia, H. B. K. 
South Mexico, Oaxaca (Ghiesbreght), Zimapan (Coulter, 732), Vera Cruz (Galeotti, 
879, Linden, 174), without localities (Bates, Harris, &c.); GuatemMata, Volcan de 
Fuego (Salvin, Bernoulli); Panama, Veraguas (Seemann, 1645).—And widely dispersed 
in Soura America, also reported from Trintipap. Hb. Kew. 
8. Polygala angustifolia, H. B. K. Nov. Gen. et Sp. v. p. 405. 
Polygala monticoia, H. B. K. 
Mexico (Grisebach); Guatemata, Vera Paz (Bernoulli, 998).—Generally distributed 
in the West InpiEs and Tropical Sourh America. Hb. Kew. 
4. Polygala boykinii, Nutt. in Journ. Acad. Philad. vii. p. 86. 
Polygala bicolor, H. B. K. Nov. Gen. et Sp. v. p. 394, t. 507. 
SourHEeRN States of Nort AmeErica,—through Mexico, Oaxaca ((thiesbreght), Tacu- 
baya (Schaffner), Vera Cruz (Miller), Cerro de Quinzeo, Michoacan, 8500 feet (Gale- 
otti, 876), Orizaba (Miller, 999); Guatemana, Laguna de Ayarces (Bernoulli, 662). 
Hb. Kew. - - 
5. Polygala brizoides, St.-Hil. Fl. Bras. mérid. ii. p. 44, t. 88. 
Polygala camporum, Benth. 
Sourn Muxico, Mirador, Vera Cruz (Linden, 175).—Widely dispersed in Tropical 
SoutH America and the Wusr INDIES; but we have seen no specimen from the country 
between Colombia and South Mexico. Hb. Kew. 
