BESTIMMUNG DEE KAEBONPFLANZEN WEST-EUEOPAS 97 



elevata, cortice glabro, ramis attenuatis, foliis parvis, angustis, 

 acuminatis, glabris." It will be observed that no fruit-characters 

 are indicatec^ nor does it appear from the detailed description in 

 English that fruit has been seen. The tree appears to be widely 

 distributed, and is the Ulmus sativus var. Lockii of Mr. Druce's 

 List. This latter name, by the way, presents certain difficulties. 

 Mr. Druce tells us that the name Lockii was given by him because 

 in the area of its growth it is "called Lock's elm, a name I am 

 told which refers to the timber, not to a man's name connected 

 with " the tree. This probably refers to some use of the timber 

 in connection with locks: but in that case can "Lockii" be 

 quoted, even in synonymy? The paper is accompanied by two 

 figures of the tree. 



Allium sph^eocephalum L. (p. 64). — In 1906 I brought 

 home two bulbs from Jersey. One of these was planted in a 

 rockery among blocks of limestone, the other in garden loam. 

 Bach year they have flowered freely, and have increased by bulb 

 division : but in neither case have any head-bulbils appeared, nor 

 have I obtained ripe seed. I suppose there is no chance of Mr. 

 Hunnybun's plant being a hybrid? The development of the 

 young plants of A. sphcsrocephalum is different from that of 

 A. vineale. — G. C. Deuce. 



REVIEWS. 



Anleitung zur Bestimmung der Karhonpflanzen West-Europas. By 

 Dr. W. J. JoNGMANs. Band i. Pp. 482, 390 figs. Craz and 

 Gerlach (J. Stettner), Freiberg in Sachsen. 15 Marks. 



Theee can be few of those who have worked at the task of 

 identifying fossil plants from the Coal Measures who have not 

 wished for a systematic flora of such plants. The original 

 descriptions and illustrations are usually scattered in a hundred 

 different publications, many of them difficult to procure ; the 

 synonomy is often so puzzling and the characters regarded by 

 authors as specific are so varied that the task of identification 

 becomes extremely difficult to anyone who has not made a special 

 study of the subject. 



It is obvious, therefore, that the work which Dr. Jongmans 

 has undertaken is of great utility to those botanists and geologists 

 who wish to collect and study the carboniferous plants of Western 

 Europe. We are now to have for the first time a systematic flora 

 with analytical keys. The present volume deals with the Thallo- 

 phyta, of which our knowledge is very fragmentary, the Equise- 

 tales, which form one of the most important constituents of the 

 carboniferous flora, and the Sphenophy Hales, an interesting group 

 long extinct but with probable relations in the modern Psilotum 

 and Tmesipteris. The various genera and species of these groups 

 are treated in considerable detail, and the descriptions are sup- 



