36 The Ottawa Xaturalist. [May 



Arthonia (Arthothelium) Macounii sp. nov. 



Thallus hypophloedes albus vel cinereo-albidus effusus; 

 apothecia .lO-.OSmm. lata orbicularia et elliptica vel 

 angulosa plana vel leviter emersa nigra; sporae hyalinae 

 cvlindrico-abovoideae 40-47 x 13-14 ;u muriformi-multi- 

 loculares, loculus superior reliquis multo major; hypothe- 

 cium hyalinum, asci saccato-abovoidei 8 spori; gelatina 

 hvnien. iodo vinose-rubens. 

 Est valde affinis A. ampliatae Kn. et Mitt. 

 Ad corticem Abietum juniorum. Sidney. 

 Young spores 4-loc., cells of those mature commonly once 

 divided, but sometimes twice, the large cell at times ir- 

 regularly septate. Proportion of the large cell to remainder 

 of the spore 3-10 of its length. 



Verrucaria aethiobola var. acrotella (Ach.) A. L. Sm., 

 Brit. Lich. II, p. 282 (1911). 



Rocks, Sidney. 



Thallus a filmy dark stain, spores 22 x 9 /i, agreeing well 



with the measurements given by Nylander. The relatively 



feeble development of the variation prevents its easy 



recognition. 



Unrecorded from America. 



LIST OF PLANTS IN FLOWER IN THE VICINITY OF 

 SIDNEY, VANCOUVER ISLAND, MARCH, 1914.* 



By John Macoun, M.A., F.R.S.C. 



The following is, I believe, the first list of Vancouver Island 

 spring flowers that has been published, and as most of the genera 

 and some of the species are also found in eastern Canada, it may 

 prove of interest to readers of The Ottawa Naturalist. Fifty- 

 seven species of phanerogams were noted in bloom during the 

 month. It ma}^ be said that a visit to Victoria during the last 

 week in March would probably have added ten or more species 

 to the list. 



March 1 — -Alnus oregana, Nutt. 



" 2 — Stellaria media, (L.) Cyrill. 

 Brassica campestris, L. 

 Taraxacum officinale, Weber. 



♦Published by permission of the Director of the Geological Survey. 



