VOL. XVI. June, 1891. NO. 6, 



THE 



Botanical Gazette 



EDITORS: 



JOHN M. COULTER, Wabash College, Crawfordsville, Ind. 



CHARLES R. BARNES, University of Wisconsin, Madison, Wi* 

 J. C. ARTHUR, Purdue University, Lafayette, Ind. 



CONTENTS: 



Abnormal phyllotactic conditions as shown by the leaves or flowers of certain plants. 



(With plate XIV.)— Aug. F. Foersie 159 



A study of some anatomical characters of North American Gramineas. (With plate 



XV.)- Theo. Holm . . . . . 166 



On the organization of the fossil plants of the Coal-measures.— David White 172 



On the relation between insects and the forms and character of flowers.— Thomas 



Meehan 176 



Briefer Articles 178 Open Letters .-:"** 187 



A tuecrestion on the proper terminol- 

 ogy of the soermaphvtic flower: Con* 

 way MacMiUan —A curious case of 



perminatioa in Citrus decumana: IV. 

 vFarlow — Coursetia axillaris, n. sp.: 



John M. Coulter. 



Editorial ISO 



tL 2 a " re adiiig-circle M botany.— 

 *ne three-months course in botany. 



Current Literature 182 



ire.e » Kpilobium.— Ba on's His- 



tone des Piautes.— Minor notices. 



A plea for better botanical specimens. 

 Pachystuna Caubyi in cultivation. 



Notes and News . .... 188 



Personals. — Hepaticar Americana. — 

 Forestry teaching — Poisoning plants. 

 --Continuity of protoplasm in Poly- 

 siphonia. — Boreal phanerogams. — 

 A graft ^sease of the vine -Peary s 

 Greet in-1 expedition. — Abnormal 

 leaves of Vicia sepium. 



[ISSUED JUN£ 15.] 



CRAWFORDSVILLE. INDIANA. 



PUBLISHED BY THE EDITORS. 



Tracy, Gibbs & Co., Printers, Madison, Wisconsin. 



