234 Floristik, Geographie, Systematik etc. 



Niger ou du Chari. Rubiaceae: Pavetta utüis Hua, du Haut- 

 Niger et du Haut-Oubangui. Scrofulariaceae: Cycnium Cheva- 

 lieri Diels, du Haut-Chari. Araceae: Stylochiton Chevalieri Engl., 

 Hydrostne Chevalieri Engl., H. foetida Engl., H. purpurea Engl., du 

 Chari et du Niger. Cyperaceae: KylUnga debilis C. ß. Clarke, du 

 Moyen-Niger, JunceÜns ater C. B. Clarke, du Haut-Oubangui, 

 Cyperus monostigtna C. B. Clarke, du Congo frangais et du Bas- 

 Chari, C. permacev C. B. Clarke, du Moyen-Niger, Mariscus stolo- 

 nifer C. B. Clarke, du Bas-Chari, Fimbristylis magnifica C. B. 

 Clarke, du Congo frangais, Bulbostylis ßmbnstyloides C.B. Clarke, 

 (Scirpus fimbristyloides K. Schum. mss., Bulbostylis Schimperiana C. 

 B. Clarke, partim), Scirpus occultus C. B. Clarke, forme? du Sc. 

 Lugardi Dyer, Fuireua seriata C. B. Clarke, ces dernieres du 

 Moyen-Niger. J. Offner. 



Clark, G., The Big Trees of California. (Yosemite Valley, Calif. 

 G. Clark. 1907. 104 pp. 20 pl.) 



A populär account of the big trees of California, Seqiioia 

 gigantea, describing briefly the different groves and the more 

 remarkable individual trees. "The average height of the large sized 

 Sequoias is about two hundred and seventy-five feet, though some 

 have been found to exceed three hundred and twentj'^-tive feet in 

 height. Their average diameter at the ground is about twenty feet, 

 though in nearly every grove there are some wbich exceed thirty 

 feet in diameter." 



Many individual trees are mentioned, for instance, the "General 

 Grant" said to be the largest, some 40 feet in diameter at the 

 ground; the "General Sherman" 102 feet in circumference at the 

 ground, 84^ five feet above the ground and 72 feet in circumference 

 at 15 feet above the ground and tapering very little for one hun- 

 dred feet or more upwards, it probably contains more cubic feet of 

 sound wood than any other tree in California; the "Grizzl}?^ Giant" 

 with a brauch 6 feet 7 inches in diameter arising 100 feet above 

 the ground and supposed to be some 6,000 years old. The "Mother 

 of the Forest" some 325 feet high had the bark removed for the 

 Paris Exposition of 1860; the "Boole Tree" 106 feet in circumference 

 at the base was left Standing alone by the destruction of the sur- 

 rounding trees for the saw mills. All of these and many other trees 

 are illustrated by fairly good halftone plates. The name Sequoia 

 Washingtoniana (Winslow) SudAvorth, is adopted. 



W. T. Swingle. 



^.'5' 



Coville, F. V. and N. L. Britton. Grossulariaceae. (N. Amer. Flora. 

 XXII. p. 193-225. June 12, 1908.) 



Dealing with Ribes (43 species) and Grossidaria (40 species), and 

 containing the following new names: Ribes gracilliMiuni , R. fontinale 

 Britt., Grossidaria speciosa {Ribes speciosiun Pursh), G. Greeneiana 

 [R. Greeneianum Heller), G, Victoris (R. Victoris Greene), G.Mensiesii 

 (R. Mensiesii Pursh), G. Hystrix {R. Hystrix Eastw.), G. leptosma 

 Cov. , G. senilis Cov. , G. californica {R. calif ornicuin H. & A.), G. 

 hesperia (R. hesperium Mc. Clatchie), G. cruenta {R. crueutiim Greene), 

 G. Roeslii (R. Roeslii Regel), G. aniara (/?. amaruni Mc. Clatchie), 

 G. sericea {R. sericeiini Eastw.), G. Lobbii[R. Lobbii Gray), G. Mars- 

 hallii {R. Marshallii Greene), G. pinetorum (R. pinetorum Greene), 

 G. binominata (R. biiiominatum Heller), G. Watsotiiana (R. Watso- 



