48.- P. tenera, Mx.- var. californica - magnificent as well some of the last. a) June 26, 1868. Mr. 20th reg.- Cumberland cut- b) Aug. 26, " E. Hume'st. Carton above Anderson Ranch. 7000 ft. 6" 49.- P. tenera, Mx.- var. californica, Eng.- a small shrub of the East. April 12, 1868. Cloma Mts. nearly snow- 9,000 ft. 2½". 50.- P. coccinata, Doug.- var. B. minus, Meis.- Althuia described by Hooker as remarkably handsome, and by Meissner as very smooth and shiny, as they also are in propria specie in H. & Gray. Some show the althuia minutely roughened, while in this variety they are either platanus or more or less tubulose which, are upon the same plans. This is P. coccinata of Nutt. MSS., with "rugulosa althuia" althuia taken from "Columbia plains" & his MSS. P. rubricatuma, glabrous, from Rocky Mts. N. Calif.- It is also 450 H.H. from Colorado & 125 from near Donner Lake, Calif. a) Aug. 29, 1868. S. Humb. Mts.- Clover above Lake 7,100 ft., 12½". b) April 12, " Cloma Mts.- heads of Carton- 9,000 ft. N. Ch. c) June 24, 1869. Ridge above Parleys Park 6,000 ft., 11". d) " 30, " Ridge near Camp 6,500 ft., 5". 51.- P. coccinata, Doug. B. minus - a more alder, shrub spiked form. a) July 27, 1868. S. Humb. St. Sink a Divid above Strawberry. 12½". b) June 24, 1869. Laramie.- Carton above Parleys Park 12". c) " 26, " " Parleys Park Camp 10". 52.- P. amabilis, L.- Northern States & Canada, an arborescent to the Great Slave Lake; from Washington running to California, at the mountain's extremity, and in Mexico, etc. a) July 16, 1868. Peter Gilman Solo - W.W.B. 4½". b) June 25, " Above Cumberland- 3000 feet 2". c) Aug. 1 " Reddy Valley 10". d) Sept. 26 " 1000 Spring Valley 2". e) July 20, 1868. Parleys Park 2½".