328 BOTANY. 



prothallus, iu which he figures some curious forms of buds and what he 

 calls conidia, and iu Kosmos is an article by Dodel-Port ou the iieculiar 

 forms which fern-i)rothalli assume when grown under water. 



PH^NOGAMS. 



The most imx)ortaut work published during the year in the United 

 States is the second and final volume of the Flora of California, by 

 Sereno Watson. The work was published under the auspices of the 

 Geological Survey of California, aided by private subscriptions. In the 

 work Mr. Watson was aided by Dr. Engelmann, who elaborated the oaks, 

 pines, and Loranthacece ; by M. S. Bebb on the willows ; William Boot 

 on Carices ; Dr. George Thurber ou the grasses ; and Professor Eaton 

 on the higher cryptogams. The work ends with the mosses, the lower 

 cryptogams being entirely omitted. The appendix contains a glossary 

 and a List of Persons who have made botanical collections in California, 

 by Prof. W^. H. Brewer. The botanical contributions of Professor Gray 

 in the Proc. Am. Acad. Arts and Sciences aomimse Notes on some Gomposi- 

 tee, which form a sort of prodromus of that order in the Synoptical Flora : 

 Some Species of Asclepias ; A New Genus of Gentianaeew, Geniostemon 

 including two Mexican species ; and Miscellanece of the North American 

 Flora, including the new genus Beverchonia. The Vegetation of the Eocky 

 Mountain Region, by Professor Gray and Sir J. D. Hooker, published iu 

 the Bull. U. S. Geol. and Geog. Survey, although bearing the date 1880, 

 was not in reality made generally public until 1881. The Trans. St. 

 Louis Academy contain a Revision of the genus Piniis and Description of 

 Finns Elliottii, by Dr. Engelmann, with three folio plates by lioetter. 

 In the Botanical Gazette are several notices by Professor Gray, of which 

 may be mentioned an account of the genus Leavemcorthia, of which 

 four species are described. In the same journal Engelmann describes 

 a new species of Catalpa, €. speciosa; Mr. T. Morong describes some 

 new species of Potamogeton, and Professor Porter a new species, Rahen- 

 aria Garberi. Bailey gives an account of Michigan Lake Shore Plants ; 

 I. C. Martindale, under the title of Germination and Groivth of Parasitic 

 Plants, relates his experience with Orobanche minor. The same botanist 

 gives an account of the so-called Bartram Oalc, in which he concludes 

 that Quercus heterophyUa Mchx. is a distinct species. J. Donnell Smith 

 has in Bull. Torr. Club a note on Woljfid gladiata var. Floridana, in 

 which he includes some remarks by Hegelmaier on that species. Prof. 

 C. S. Sargent has issued a Catalogue of the Forest Trees of North America 

 in connection with the work of the Census Bureau. 



Of foreign works may be mentioned Elmes's Monograph of the genus 

 Lilium, a folio with 78 colored plates, and J. G. Baker's Synopsis of 

 Aloinece and Yuccoidece in the Journ. Lum. Soc. Several additions have 

 been made during the year to works on local floras which had appeared 

 in part in previous years. The Flora of British India, by Hooker, has 



