SAXIFRAGACEA. 883 
4, Heuchera rubescens, Torr. in Stansbury’s Rep. p. 388, t. 5. 
Utaz, CaLiForniA, and New Mexico.—Norta Mexico, region of San Luis Potosi, 
6000 to 8000 feet (Parry & Palmer, 231). Hb. Kew. 
5. Heuchera sanguinea, Englm. in Wisliz. Rep. p. 107. 
NortH Mexico, Santa Cruz, Sonora (Wislizenus). | 
3, LEPUROPETALON. 
Lepuropetaion, Ell. Sk. i. p. 870; Benth. et Hook. Gen. Plant. i. p. 639. 
The only species. 
1. Lepuropetalon spathulatum, Ell. Sk. i. p. 370. 
South Carouina to Gzorera, Texas, and—Norta Mexico, Santa Cruz, Sonora (Parry). 
—Also in CHILI, according to Torrey and Gray. 
Tribe HYDRANGEA. 
Trees and shrubs. With few exceptions, natives of the northern hemisphere. 
4. HYDRANGEA. 
Hydrangea, Linn. Gen. Plant. n. 557 ; Benth. et Hook. Gen. Plant. i. p. 640. . 
About thirty species, dispersed in the mountains of India, China, Japan, Java, and 
North and South America. 
1. Hydrangea peruviana, Moric. in DC. Prodr. iv. p. 14. 
Cornidia radiata, Girst. in Vidensk. Meddel. 1856, p. 42. 
NortH Mexico, Sierra Madre in barrancas, climbing and rooting on old trees like ivy 
(Seemann, 2142); Soura Mexico, valley of Cordova (Bourgeau); Costa Rica, Cande- 
laria Mountains, 6000 to 7000 feet (@irsted).—Cotompia to Perv. Hb. Kew. 
5. PHILADELPHUS. 
Philadelphus, Linn. Gen. Plant. n. 614; Benth. et Hook. Gen. Plant. i. p. 642. 
About twelve species, inhabiting Central Europe, Temperate North America, Japan, 
and.the Himalayan Mountains. 
Seemann (Bot. Voy. ‘ Herald’) refers all the forms enumerated below to one species. 
1. Philadelphus affinis, Schl. in Linnea, xiii. p. 419. 
Sour Muxico, Barranca de la Hacienda del Carmen (Ehrenberg). 
9. Philadelphus myrtoides, Bertol. Fl. Guat. p. 21. 
GuaTemMaLa, Volcan de Agua (Velasquez). 
