Miscellaneous papers,

At head of title: Smithsonian institution.[I.] Thompsonella, a new genus of Crassulaceae from Mexico. By N.L. Britton and J.N. Rose. --[II.] Rediscovery of Echeveria carnicolor. By J.N. Rose. --[III.] Three new species of Crassulaceae from Guatemala. By J.N. Rose. --[IV.] Rediscovery of Cereus nudiflorus. By J.N. Rose. --[V.] A species of Pereskia from Guatemala, by J.N. Rose. --[VI.] New species of Opuntia from Arizona. By J.N. Rose. --[VII.] Echinocereus baileyi, a new cactus from Oklahoma, by J.N. Rose. --[VIII.] Nopalea lutea, a new cactus from Guatemala. By J.N. Rose. --[IX.] Conzattia, a new genus of Caesalpiniaceae. By J.N. Rose. --[X.] Two new species of Acacia of the series Filicinae. By J.N. Rose. --[XI] A new spleenwort from China, by William R. Maxon.Mode of access: Internet