347 
In all the volumes the illustrations are by the author, and though 
imperfect and suggestive rather than accurate, yet they will un- 
doubtedly be helpful, and add to the attractiveness of the book. 
We regret that justice has not been done to several of our most 
attractive shrubs, such as the Laurels. All the drawings are 
natural size, however, and occupy full pages. The text has broad 
margins and large type. Besides the descriptions of each species, 
historical and economic notes occur here and there. Three guides 
or keys will enable the beginner to analyze any shrub by leaf, 
fruit or flower, and a chapter explanatory of the terms is also 
given. The author also advocates in his preface the planting of 
Native shrubs, advice which will be heartily endorsed by all lovers 
of our beautiful wild tangles and copses; but the list given as 
worthy of cultivation seems meagre and lacking in some of the 
most ornamental. BG B. 
Stomata and Palisade Cells of Leaves. F.C. Stewart (Proc. Iowa 
Acad. Sci., 1892, 80-84. 
Symbiosis and Mutualism in Lichens. Roscoe Pound (Am. Nat. 
XXVii. 509). 
Lrematocarpus— The Genus. A.Zahlbruckner and W. B. Hemsley 
(Ann. Bot. vii. 289, 290). 
This is an interesting discussion of the nature of certain ori- 
fices in the capsule-wall of Lobelia macrostachys, H. and A., on 
Which plant Dr. Zahlbruckner founded his genus Zvematocarpus. 
In alluding to the proposed genus in a former number of “ Annals 
of Botany,” Mr. Hemsley maintained that the orifices, taken by 
Dr. Zahlbruckner as pores of dehiscence, were actually the work 
of insects. Dr. Zahlbruckner now defends his original position, 
but Mr. Hemsley still maintains the opinion that the pores are not 
normal, and Dr. Stapf is to investigate the anatomy of the capsule. 
The further developments of the investigations are awaited with 
interest, eee Be 5B 
Trichomanes Potersii. (Meehan’s Month. iii. 81, with colored 
illustration.) . 
Tsuga Pattoniana (Gardn. Chron. xiii. 659, with figure). 
Two New Plants from Washington. B. L. Robinson and HE, 
Seaton. (Bot. Gaz. xviii. 237). 
