180 MORPHOLOGY AND TAXONOMY [Bot. Absts., Vol. IV, 



1178. Wager, Harold. A fluorescent colouring matter from Leptonia incana Gill. Trans. 

 British Mycol. Soc. 6: 158-164. 1919. — Experiments show that this fungus contains two fluor- 

 escent coloring matters one yellow the other blue. These in combination give the plant 

 a green color. A discussion of the phenomenon of fluorescence in fungi is accompanied by a 

 list of species in which it occurs. — H. M. Fitzpatrick. 



1179. Wakefield, E. M. Observations on the biology of some sand-dune fungi. Trans. 

 British Mycol. Soc. 6: 33-36. 1918. — The species Psilocybe ammophila Mont., Coprinus 

 Friesii Quel., Bolbitius tener Berk., Galera rubiginosa Fr., Inocybe dulcamara Fr., and Inocybe 

 cutheles B. & Br. are discussed. They were collected on the sand dunes on the Gower coast 

 in South Wales. Field observations show that the mycelium of the fungi in some cases arises 

 from buried leaves of dune plants. In the case of two species, however, the only apparent 

 source of organic matter was a crust of humus formed from algae, chiefly Oscillaria. It is 

 believed that careful observation will show the fungous flora of sand dunes to be extensive. 

 — H. M. Fitzpatrick. 



1180. Wakefield, E. M. The Selby foray, 9th-14th September 1918, and complete list 

 of fungi gathered during the foray. Trans. British Mycol. Soc. 6: 77-87. 1919. — A brief dis- 

 cussion of the interesting features of the foray is followed by a complete list of the fungi col- 

 lected. A group picture showing the 33 members of the society who attended the foray 

 accompanies the article. — H. M. Fitzpatrick. 



1181. Wakefield, E. M. New British fungi. Trans. British Mycol. Soc. 6: 132-134. 

 1919. — Hypochnus umbrinus (Fr.) Quel., H. isabellinus Fr., Galactinia Howsei Boud., Helo- 

 Hum ciliatosporium Boud., Gloeosporium inconspicuum Cav., and Ramularia Barbaraeae Pk. 

 reported for the British Isles . — H. M. Fitzpatrick. 



11S2. Wakefield, E. M. Charles Ogilvie Farquarson. Trans. British Mycol. Soc. 6 : 

 236-237. 1919. 



1183. Wakefield, E. M., and A. A. Pearson. Resupinate hymenomycetes from the 

 neighborhood of Weybridge, Surrey. Trans. British. Mycol. Soc. 6: 68-75. 1918. — Tulasnella 

 tremelloides n. sp. is described and figured. Protodontia uda v. Hoehn., and a number of 

 species of Corticium, Peniophora, Hypochnus, Coniophora, Odontia, Poria, etc., are cited 

 with critical notes and figures. Six species and two genera are new to the British Isles. [See 

 next following Entry, 1184.] — H. M. Fitzpatrick. 



1184. Wakefield, E. M., and Pearson A. A. Additional resupinate hymenomycetes 

 from the Weybridge district. Trans. British Mycol. Soc. 6: 136-143. 1919. — Notes are given 

 on collections of Plalygloea effusa Schroet., and various species of Corticium, Peniophora, 

 Hypochnus, Grandinia, Odontia, Radulum, Solenia, Merulius, Hydnum and Poria. No new 

 species listed. [See next preceding Entry, 1183.] — H. M. Fitzpatrick. 



11S5. Waksman, Selman A. Studies in the metabolism of Actinomycetes. II. Jour. 

 Bact. 4: 307-330. 1919.— See Bot. Absts. 3, Entry 2860. 



1186. Walker, Leva B. Development of Pluteus admirabilis and Tubaria furfuracea. 

 Bot. Gaz. 68: 1-21. 8 fig., 5 pi. 1919. — The basidiocarp primordium of Tubaria consists of 

 loosely interwoven hyphae of uniform size; the primordium of Pluteus was not obtained. 

 In Tubaria the development of the fruit body is endogenous, a well-defined blematogen sur- 

 rounding it while young. In Pluteus the development is exogenous, and there is a strong epin- 

 astic development in the margin of the pileus; the gills originate as downward growing folds 

 which develop centrifugally. In Tubaria the development is also centrifugal, the gills origin- 

 ating as radial folds in a previously uniform palisade layer. The cystidia of Pluteus are 

 formed terminally on filaments similar to those that bear the smaller cells of the hymenial 

 layer; these filaments eventually become branched. Upon the expansion of the trama of 

 Pluteus large elongated cells from the subhymenium grow inward and downward, giving the 



