844 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



figures of some of the edible fungi of the State, with notes on the best 

 modes of cooking. Morchella bispora, *M. semilibera, M. angusticeps, 

 *M. conica, *M, esculenta (Morels), *Bovista phimbea, *B. gigantea, 

 Lycoperdon separans, L. cyalhiforme, *L. ccelatum, and *L. gemmatum 

 are described. [Those marked * are British.] — F. J. C. 



Mycorhiza. A Mycorhiza from the Lower Coal Measures. 



By F. E. Weiss (Ann. Bot. xviii. April 1904, pp. 255-265; 2 plates).— 

 A fungus invading the tissues of an unknown fossil root or rhizome is 

 described. The hyphae are mostly intracellular and are present in the 

 exo- and medio- cortex. The characters of the mycorhiza in Thismia and 

 Xeottia are compared with those of the present case. The name 

 Mycorhizonium is suggested for this mycorhiza. — A. D. C. 



Mycorhiza of Liverworts. By Dr. Anton J. M. Garjeanne 

 (Hilversum) (Beih. Bot. Cent. xv. pp. 471-482 ; with 10 figures in text). — 

 Gives a full acount of the mycorhiza in many species of Liverworts. 

 Spores in connection with the fungus filaments were discovered, and it is 

 suggested that the fungus is Paryphydria Hcimerlii (a half -lichen after 

 Zukal). A strong development of the fungus is very common, and it is 

 found on bark Liverworts also, chiefly in the rhizoids. It is not so constant 

 and uniform as in the higher plants, and has more of a parasitic character. 



G. F. S.-E. 



Mycorhiza of a Liverwort. By B. Nemee (Beih. Bot. Cent. xvi. 

 pp. 253-268 ; with 1 plate). — Gives a description of the way in which the 

 mycorhiza of the fungus infects Calypogeia trichomanis. The fungus 

 attacks the ends of the rhizoids, and later the leaf or stem cells. Its 

 behaviour is not the same when the plant is grown on different sub- 

 strata. Sometimes the fungus threads break into cells, which become 

 swollen rounded bodies often nearly filling the cell. Sometimes branches 

 of the fungus penetrate the cell-walls. The author seems to consider 

 that it is not quite certain that the fungus is anything but a harmless 

 parasite. — G. F. S.-E. 



Mystacidium, The Genus. By R. A. Rolfe (Orcli. Rev. vol. xii. 

 p. 46). — Particulars of this and its allied genus afford information to 

 those interested in botanically interesting Orchids. — II. J. C. 



Names, Plant-, Suggestion for extending. By F. Noll [Beih. 

 Bot. Cent. xiv. pp. 374 -380). — Suggests that, when quoting any foreign 

 plant's name, a contraction of its order's name should be given before the 

 genus, as, e.g., Spadi-Syngonium for the genus Syngonium of the order 

 Spadicijlorce. At present it is often impossible, unless by consulting books, 

 to tell whether the plant is a Lichen or a Conifer, a Moss or a Palm. 



G. F. S.-E. 



Nectaries, Extra-Floral : Of Hevea brasiliensis, Mull. Arg\ 

 (the Para Rubber Tree), an Example of Bud Scales serving* 

 as Nectaries. By John Parkin (Ann, Bot. xviii. April 1904, pp. 217- 

 225 ; 1 plate). — Het ea brasiliensis possesses two kinds of floral nectaries : 



