30 



Order 37.— CUCURBITACEJE. 48. 



1. Sicyos, L. 



augula.tus, L. (Single-seeded Cucumber.) 



River banks and waste places. Frequent. July. 



Order 38.— CRASSULACE^. 49. 



1. Penthorum, Gronov. 

 sedoides, L. 



Wet places. Frequent. July. 



Order 39.- SAXIFRAGACE^L 50. 



Sub-Order 1.— SAXIFRAGES. 



1. Saxifraga, L. 



Virginiensis, Michx. (Early Saxifrage.) 



Exposed rocks; Brandy wine. Frequent. April. 



Pennsylvania, L. (Swamp Saxifrage.) 

 Swamps; Thompson's. Frequent. May. 



2. Heuchera, L. 



Americana, L. (Alum-root.) 

 Rocky woods. Frequent. May. 



3. Mitella, Tourn. 



diphylla, L. (Mitrewort.) 



Rich rocky hillsides; Bancroft's. Frequent. April, 



4. Chrysosplenium, Tourn. 



Americanum, Scliw. (Water Carpet.) 



Shaded springs and rivulets. Frequent. April. 



Sub-Order 2.— ESCALLONIES. 



5. Itea, L. 



Virginica, L. 



Wet places ; Thompson's. Rare. June. 



Order 40.— H AM AMELACE^. 51 . 



1. Hamamelis, L^ 



Virginica, L. (Witch Hazel.) 



Moist woods, &c. Frequent. Oct. 



2. Liquid ambar, L. 



Styraciflua, L. (Sweet Gum.) 



Moist woods; Brandy wine. Frequent. April. 



