A MONOGRAPH OF THE MYCETOZOA 133 



of Spiggie, Dunrossness, W. H. Beeby. A sheet from Lochan 

 Feoir, near Inchnadamph, v.-c. 108, referred by Professor Trail to 

 U. ochroleuca (which he considered to be U. intermedia x minor), 

 Prof. GUick says is not that, but either barren U. minor or U. 

 Bremii ; it is very stout for the former, with considerably larger 

 bladders, and in habit closely resembles Continental Bremii which 

 I have seen. I have no Scottish specimen of true U. intermedia] 

 on the other hand, Prof. Gliick saw a good deal of that in West 

 Ireland last year, but no U. ochroleuca. The occurrence of U. 

 ochroleuca — mainly a northern species — so far south as Dorset 

 was quite unexpected. — Edward S. Marshall. 



Orobanche picridis Schultz in Herts. — In a collection of 

 plants which recently came into my possession, and w^as formed 

 by members of the Blake family of Danesbury, near Welwyn, is a 

 good specimen of the above, which is not on record for Herts. 

 It ^vas labelled 0. minor and collected at Welwyn in 1821. — 

 G. Claridge Druce. 



REVIEWS. 



A Monograph of the Mycetozoa : a Descriptive Catalogue of the 

 Species in the Herbarium of the British Museum. By 

 Arthur Lister, F.E.S., F.L.S. Second Edition, revised by 

 GuLiELMA Lister, F.L.S. Printed by order of the Trustees 

 of the British Museum. 1911. 8vo, pp. 302. 201 plates 

 and 56 woodcuts. Price £1 10s. 



Of all the groups of organic beings there is perhaps none 

 more interesting to the biologist than that of the Mycetozoa. 

 Though generally classed as vegetables they have a relationship 

 with the lower forms of animal life, as De Bary endeavoured to 

 express in the word Mycetozoa. Like troops of nomads they 

 wander across the boundary line between the two kingdoms. 



The peculiar method of their reproduction by swarm spores 

 uniting into a plasmodium separates them from the Fungi and all 

 the other groups to which they might otherwise approximate ; 

 and the variety and beauty of their sporangia make them highly 

 attractive in the cabinet and under the microscope. Again, the 

 extreme simplicity of their structure and the facility with w^iich 

 they perform all the functions necessary to life seem to afford a 

 vivid illustration of Hunter's well-known doctrine that life pre- 

 cedes organization. 



Of this group, the acknowledged text-book, at least for all 

 English students, has hitherto been the first edition of Mr. Lister's 

 monograph, published in 1894. We nowMvelcome a second edition 

 from the hands of his accomplished daughter, Miss Gulielma 

 Lister, embodying the results of the studies of her father until his 

 death in 1908, and of her own studies from the very commence- 

 ment of his labours. This work is a most admirable one, and 



