364 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 



Amarella & germanica. Habenaria Gymnadenia, Druce Fl. Berks 

 479, 1897. //. virescens (Zollik.) Ann. Scot. Nat. Hist. 244, 1907, vice 

 //. chloroleuca Ridley. Helleborine media (Fries as Epipactis), Ann. 

 Scot. Nat. Hist. 48, 1905 ; H.sessilifolia (Peterm.) I.e. 48. Kentranthus 

 Calcitrapa (Dufr. as Centranthus), British Plant List, p. 34. K. 

 ruber (L.) Druce Fl. Berks 268, 1897, vice Centranthus ruber. 

 Lappula minima (Lehm.) vice Fchinospermum, British Plant List 

 p. 50, 1908. L. Szovitsiana (Fisch. & Mey.) vice Fchinospermum I.e. 

 Legousia pentagonia (L.), British Plant List 46, Jan. 1908; 

 earlier than Thellung in Vier Ges. Zurich xlv., 465, 1908. Lepturus 

 incurvus (L.) (vice L. incurvatus), British Plant List, 85. 

 Ornithopus pinnatus (Miller), Journ. Bot. 420, 1907. Oryzopsis 

 trichotoma (Nees) (as Stipa), Bot. Exch. Club Rep., 420, 1909. 

 Radicula erythrocaulis (Borbas), Bot. Exch. Club Rep., 412, 1909. 

 Rhinanthus borealis (Stern.) as Alectorolophus, Ann t Scot. Nat. Hist., 

 178, 1901 insyn. R. Drummond-Hayi (Stern.) I.e. 171, 1903. R. 

 monticola (Stern.) I.e. 178, 1901, et 171, 1903. (See also Journ. 

 Bot., 359, 1903.) Saxifraga Farreri, Bot. Exch. Club Rep., 256, 1907, 

 (S. hypnoides x tridactylites). Wilckia Chia (DC.) (vice Malcomid), 

 Bot. Exch. Club Rep., 412, 1909. W. crenulata (Boissier), British 

 Plant List, p. 6, 1908. 



* The authority for all the above in the places cited is Druce. 



Linnaea borealis, Monographische Studie. Emil Giger in 

 Beihefte Bot. Centralblatt. Band xxx., Zweite Abt. Heft, i., 1913, 

 pp. 1-78. This gives a very complete account of the world distribu- 

 tion, the associates, insect visitors, and literature of this charming 

 species. 



Beitrage zur Kenntniss der Menthenflora von Mittel- 

 etjropa. Anton Topitz. Beihefte Bot. Centralblatt. Band xxx. 

 Heft 2, 1913, pp. 138-264. Six major species are first described, e.g., 

 Mentha rotundifolia (7 vars.), M. longifolia (33 vars.), M. viridis (10 

 vars.), M. aquatica (21 vars.), M. arvensis (19 vars.), and M. Pulegium 

 (3 vars.). Then the more fixed hybrids are given, i.e., M. villosa 



Huds. (M. rotundifolia x 1 longifolia, ^ which M. alopecuroides Hull 

 v J \ viridis, ' r 



is one of the 19 vars. ; M. Maximiliana Schultz, not yet recorded as 



British = {aquatica x rotundifolia), with 3 vars. ; M. dumetorum 



Schultz = (M. aquatica x <! r °t un difolia^ _ ^ pubescens et hirta 

 v * iona\foL\a ' r 



