188 MORPHOLOGY AND TAXONOMY, FUNGI, ETC. [BoT. Absts., Vol. X, 



(new) ; BilimbiaDe'N otavis, 14species, allnew; i?omt?/Kospora Mass., 3 species; Bottaria (Mass.) 

 Wainio, 13 species (9 new) ; Byssolecania Wainio, new genus with 2 species (new) ; Calenia 

 Miill.-Arg., 7 species (6 new); Calicium Persoon, 1 species (new); Catillaria (Mass.) Wainio, 

 9 species (8 new); Chiodecton (Ach.) Wainio, 20 species (13 new); Cladonia (Hill) Weber, 

 15 species (1 new); Coccocarpia Persoon, 5 species (1 new); Coenogonium Ehrenb., 5 species 

 (1 new); Collema (Hill) Fr., 4 species (1 new); Crocynia (Ach.) Nyl., 2 species (new); Cyclo- 

 grapha Wainio, new genus with 1 species (new); Dendriscocaulon Nyl., 1 species; Diploschistes 

 Norman, 1 species; Ectolechia Trevis., 1 species; Erioderma F^e, 2 species; Graphis (Adans.) 

 Nyl., 107 species (79 new); Gyalecta (Ach.) Wainio, 8 species (5 new); Gyrostomum Fries., 

 1 species; Haplopyrenula Mull.-Arg., 4 species (3 new); Heppia Naegeli, 1 species; Lecaniella 

 Wainio, 1 species (new); Lecidea (Ach.) Th. Fr., 33 species (30 new); Leptodendriscum Wsiinio, 

 1 species; Leptogium (Ach.) Graj^ 15 species (6 new); Megalopsora Wainio, new genus with 

 1 species (new); Melaspilea Nyl., 2 species (new); Micropyrenula Wainio, new genus with 1 

 species (new); Microthelia (Koerb.) Miill.-Arg. 1 species; Mycopegrapha Wainio, new genus 

 with 1 species (new); Opegrapha (Humb.) Wainio, 17 species (10 new); Pannaria Delise, 13 

 species (7 new); Parmeliella (Miill.-Arg.) Wainio, 3 species; Phylloblastia Wainio, new genus 

 with 1 species (new); Phyllobrassia Wainio, new genus with 1 species; Physcidia Tuck., 1 

 species; Physma Mass., 4 species (2 new); Pilocarpon Wainio, 5 species (4 new); Polyhlastia 

 (Mass.) Lonnr., 1 species (new); Porina (Ach.) Wainio, 20 species (17 new); Psoroma (Fr.) 

 Nyl., 1 species; Pseudopyrenula (Miill-Arg.) Wainio, 4 species (new); Pyrenula (F6e) Wainio, 

 33 species (29 new); Rhodothrix Wainio, new genus with 1 species (newO; Semigyalecta Wainio, 

 new genus with 1 species (new); Sphaerophorus Persoon, 2 species; Sporopodium Montagne, 

 18 species (15 new); Thalloedaema (Mass.) Wainio, 1 species; Thelenella (Nyl.) Wainio, 3 

 species (new); Thelidiopsis Wainio, new genus with 1 species (new); Thelotrema (Ach.) Eschw., 

 30 species (24 new); Toninia Mass., 2 species (new); Tricharia (Fee) Wainio, 1 species; Tricho- 

 hacidia Wainio, 1 species (new); Trichothelium MiiU.-Arg., 3 species (new). In addition to 

 the above, 2 genera of fungi are described: Melaspileela (Karst.) Wainio, with 2 species 

 (1 new), and Didymosphaeria Sacc, with 3 new species. — An analysis of the Philippine 

 lichen flora studied by Wainio shows that the tribe Graphideae, which reaches its maxi- 

 mum development in the tropics, furnishes 178 species, or over 28 per cent of the total number. 

 The genus Graphis, with 107 species, is by far the most characteristic group, and this would 

 still be true if the subgenera were to be elevated to generic rank. It is not likely that Graphis 

 will be displaced from its dominant position by further discoveries though great alterations 

 may be expected in the relative positions of some of the genera when the rock-dwelling lichens 

 are collected and studied. — Albert W. C. T. Herre. 



BACTERIA 



1250. Aters, S. H., p. Rupp, and C. S. Mudge. The production of ammonia and carbon 

 dioxide by streptococci. Jour. Infect. Diseases 29: 235-260. 1921. — By the use of ammonia 

 and carbon dioxide tests, the streptococci are divided into 4 groups: (1) Those producing no 

 ammonia and no carbon dioxide from peptone; (2) those producing both ammonia and carbon 

 dioxide from peptone; (3) those producing no ammonia, but forming carbon dioxide from 

 dextrose; (4) those producing no ammonia but forming carbon dioxide, which does not come 

 from peptone or dextrose. Ammonia can be readily determined colorimetrically. For test- 

 ing carbon dioxide production the Eldredge fermentation tube is recommended. — Selman 

 A. Waksman. 



1251. Bewley, W. F., and H. B. Hutchinson. On the changes through which the nodule 

 organism (Ps. radicicola) passes under cultural conditions. Jour. Agric. Sci. 10: 144-162. 

 PI. 1-2, fig. 1. 1920. — While the portion of the life cycle of Pseudomonas radicicola confined 

 to the nodules is fairly well known, little is known of it in the soil. The morphological changes 

 occurring in nodules have not been reproduced in vitro and little is known concerning the 

 chemical processes in the nodule. The authors employ various media containing soil extract, 

 various salts, and carbohydrates. Nodule organisms from roots of red clover, broad bean, 

 lucerne, and lupine were used and a definite life cycle was obtained. In neutral soil solution or 



