230 THE JOURNAL OF BOTANY 



very distinct habit (T possess beautiful specimens gathered by the 

 late S. A. Stewart, of Belfast) : the lower leaves are very like 

 small box-leaves ; the flowers are placed very close together, so 

 that in fruit the raceme is very dense, the fruits overlapping each 

 other. A form closely approaching Ballii, " very near my var. 

 grandiflora" (Bab. in litt.), occurs on the chalk cliffs between the 

 Shrimper's Steps at Dover and Abbott's Cliff and beyond towards 

 Folkestone. The lower leaves are even more coriaceous than 

 those of the Irish plant, and the growth is very like that of 

 P. calcarea. Mr. Backhouse, writing in September, 1877, named 

 it " a luxuriant form of calcarea " ; but when I sent him living 

 specimens he wrote, " Comes under P. vulgaris, and certainly is a 

 remarkable form." The lower leaves are oblong, very coriaceous, 

 upper lanceolate 2-5 cm. long, the flowers as large as the Irish 

 plant, and the fruiting sepals similar. Dr. Williams places 

 P. oxyptera Eeichb. as IS oxyptera Syme ; but surely if named as 

 a variety, it should bear Meyer's name of v. stenoptera (Chi. Hann. 

 (1836) p. 175. If regarded as a variety, it should be quoted as 

 of Detharding, Consp. Fl. Meg. (1828) p. 55 ; other authors prior 

 to Syme are Koch, Syn. Fl. Germ, et Helv. (1843), and Sonder, 

 Fl. Hamburg. (1851). — Arthur Bennett. 



Tapheina rhizophora Johanson in Britain. — Some speci- 

 mens of Populus alba, with female catkins, were sent to me by 

 Miss E. Armitage from Dadnor, Eoss, and several of the pistils 

 were seen to be attacked by the above fungus and had become a 

 bright orange yellow^ There is no doubt that the species in 

 question is T. rhizopliora and not the nearly related T. Joliansonii 

 (Pers.) Sadeb., which differs for one thing by its asci being up to 

 105 mm. long, w^hilst those of our species attain a length of 

 160 mm. Sadebeck makes reference to T. rhizophora in his 

 monograph on "Die parasitischen Exoasceen" {Jahrbuch der 

 Hamburgischen Wissenschaftlichen Anstalten, x. 2, 1892-93), 

 p. 75, figs. 8-9. According to him this plant is known from 

 Sweden only, and it is not easy to suggest how it was carried 

 over to England. It was actually noticed in April of this year for 

 the first time " on two female trees growing in the Dadnor 

 pleasure-grounds about 100 yards apart. A female Populus 

 virginiana close by was not affected." — O. V. Darbishire. 



MoNTiA. — My herbarium contains specimens of M. fontana L. 

 from Shidley Common, Boarstall, v.-c. 26 ; near Cheltenham, 

 v.-c. 33; near Stanton, v.-c. 31; four locahties in Glam., v.-c. 41, 

 varying from 150 to 800 feet above the sea ; St. David's Head, 

 v.-c. 45 ; near Holyhead, v.-c. 52. Of M. lamprosperma Cham, 

 (besides Mr. Druce's gathering from Carnarvonshire), from three 

 localities (at sea level, 250 feet and 800 feet) in Glamorganshire, 

 v.-c. 41; and Washburn Valley, v.-c. 64; also var. boreo-rivularis 

 Lindb., from the Bwllfa, Aberdare, at 700 feet, v.-c. 41. My gather- 

 ings in v.-c. 41 are thus divided equally between the two species. 

 If I understand the nomenclature aright, the type in both cases is 

 represented by the form of drier localities, which, however, can 



