ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 397 



from Teenitis by its simple fronds, and from Drymoglossimi by its 

 monomorphous fronds. The new species approaches more nearly to 

 Vittaria than does the type D. Miyoshianam. 



Polypodium vulgare.* — R. de Litardiere publishes his morpho- 

 logical, anatomical, and biological researches on Polypodium vulgare 

 subsp. scrrafum, illustrated with figures of the arrangement of the 

 vascular bundles in the petiole, and comes to the conclusion that it is 

 impossible to maintain serratum as a subspecies. It is better to regard 

 it as a variety ; and a definition of it is given. The varieties murale, 

 attenuatum. and serratum pass insensil)ly into one another. 



Botrychium at Chamonix.t — L. de A^ergnes, recording the discovery 

 of BotrycJiium lanceolatum Aongstr. at Chamonix, shows that Payot 

 found the same species years ago and described and figured it as B. 

 Eeuteri, but at other times confounded it with B. matricarisefoUum and 

 B. simplex. In all, Payot collected and distributed five species at 

 Chamonix — B. Lunar ia Sw., B. matricariaefolium A. Br., B. lanceolatum 

 Aongstr., B. simplex Hitchc, B. rafsefolium A. Br. Some of these 

 species are rare, poorly represented in herbaria, and little known to 

 many botanists. 



Bryophyta. 

 (By A. Gepp.) 



Morphology of Calycularia radiculosa.J— D- H. Campbell gives 

 an illustrated account of the structure and development of Calycularia 

 racliculosaj an anacrogynous thalloid hepatic from Java, under the head- 

 ings : General morphology ; the male plant ; archegonium ; the sporo- 

 phyte ; the spore-division. Schiffner referred the species to the genus 

 Morkia. Campbell thinks that it indicates a new genus intermediate 

 between Morkia and some of the less specialized forms like Makinoa and 

 Pellia. 



Marginal Cells of Jungermannia-l eaves. § — A. J. M. Garjeanne 

 has made a study of the marginal cells of leaves of certain Junger- 

 mannie^, and gives the following resume of his results. His work was 

 carried out between September and December, and he does not therefore 

 guarantee that the results hold good for other seasons. 1. The thicken- 

 ings of the marginal cells of many Jungermanniese, and especially those 

 of the starting-points of the anticlinal walls, are stouter when the 

 plants are exposed to a stronger variation of the water-content. 2. The 

 marginal cells are distinguished not only by their form and thickenings, 

 but by containing less protoplasm and a smaller number of oil bodies 

 and chlorophyll corpuscles. 3. They also are often distinguished from 

 the lamina-cells by staining more deeply with aqueous solution of 

 methylen-blue, and with other basic aniline dyes. 4. They also stain 

 deeply with silver nitrate, more than most leaf -cells do. 5. These 



* Rev. Gen. Bot., sxv. (1913) pp. 97-103 (figs.), 

 t BuU. Soc. Bot. France, Iviii. (1911) pp. 222-4. 



X Dudley Memorial Yolufiae. Stanford University, California, 1913, pp. 43-61 

 {12 figs.). § Flora, v. (1913) pp. 370-84. 



