72 BOTANICAL GAZETTE [JANUARY 
In the first chapter (pp. 1-11) he discusses the general principles of the 
classification of ferns; in the second (pp. 12-30) a history of the genusis — 
given; and in the third (pp. 21-85) very full details of its morphology are 
presented, under the headings prothallium, rootstock, root, leaf forms, 
trichomes, venation, hydathodes, sori, and leaf anatomy. The fourth chapte 
(pp. 86-223) contains detailed descriptions, both diagnostic and hie ' 
tary, of the 49 species, 10 of which are described as new.—J. M. C. . 
Dr. Jakos Huser, botanical director of the Museum of Natural History : 
of Para, has issued the first two decades of his Arboretum Amazonicum: 
Each species considered is represented by at least a page of text in Spanish 
and French in parallel columns, and a plate. The plates are exceptionally 
fine, being heliotypes from remarkably good photographs. Many of the io 
plants are represented in their natural setting, and the views of tropical plant 
formations are the finest we have seen. This series of illustrations will be 
, highly prized for its artistic and scientific excellence. In addition to illust 
— as a savanna and two illustrations of river bank vegetation. 
will appear in ten parts, at to francs a part. The author is to be congratt 
dated upon this valuable contribution to botanical literature.—J. M. C. 
_ ANOTHER R FASCICLE of Plantae Bakerianae® has just appeared. It col 
—_ “a somewhat miscellaneous congeries of paragraphs dealing with new 
otherwise interesting species ” of Mr. Baker’s collecting in the Gunnison wate? 
shed in the summer of Igor. Iti is a first installment of volume III of the serie 
ee ion of volumes I and II. It contains 
cS segues Ranunculaceae (n. app. of Cyrtorhynca, Delphinium, and Act 
tum), Cruciferae (n. spp. of Draba, Arabis, and Thelypodium), Violace 
ay ss spp: of Viola), Polygonaceae (n, spp. of Polygonum, Rumex, and E 
SG Me te ia and Orsay he R. spp. of Apocynum), Asperifoliae (n- SPI 
. en —* Teocarya), Labiatae (n. sp. of Monardella), Scrophu 
id Pentstemon), Compositae (n. spp. of Senecio, 4 
ee ee is, Psilostrophe, Hymenopappus, Artemisia, and 
pay (n. sp. of Plantago), Nyctaginaceae (a. 
ae Pea sige. 2a  segpeaees (n. spp. of Thermopet 
YS 
. BARKER? ay Described ac hat ore 
roe onjugating process that F 
— formation i ce hee undescribed yeast organism obtained from | 
/_ btained from plate-cultures am 
= a 2 ae Samazonit - Iconographie des plantes spontanées et ¢ 
ee a antes de la : ron Amazonienne. Decades 1 and 2. 4to. Para. | 
oe NE, EDwarp L.: Plantae Bakerianae. g: viiit+36. 18N 1901. f 
he — Enel ‘Phil. Trans. Roy. Soc. B. 194 : 467-485- s 46. 
