378 THE JOURNAL OF BOTANY 
names are added, e. g. Tamatavia, Placocarpa, and Nematostyls of 
Hook. fil. in Rubiacee—genera which are universally maintained. 
The three species now known of the genus may be thus 
distinguished :— 
Stem creeping. ‘ : j : P. nematosiphon. 
Stems erect. 
Calyx in fruit inflated . ‘ ; P. batanganus. 
Calyx in fruit scarcely inflated . P. cylindricus. 
The synonymy is as follows :— 
Prysac ANUS. 
Ruellia batangana J. Braun & K.Schum. in Mittheil. Deutsch. 
chutzg. ii. 173 (1889). 
Lankesteria batangana Lindau in Pflanzenfam. iv. 38, 311 
(1895). 
Haselhoffiia leucophthalma Lindau in Engl. Bot. Jahrb. xxiv. 
316 (1897). 
Physacanthus inflatus C. B. Cl. in Fl. Trop. Afr. v. 57 (1899). 
Haselhofia batangana Lindau in Engl. Bot. Jahrb. xiii. 
352 (1909). 
Pp 
crtinpricus C. B. Clarke in Fl. Trop. Afr. v. 58 (1899). 
H. cylindrica Lindau, l. c. 
. NEMATOSIPHON. 
H. nematosiphon Lindau, op. cit. 351. 
rg 
NOTES ON THE FLORA OF DORSET. 
By THE Rev. E. F. Linton, M.A. 
Tue north-east corner of Dorset, of which Cranborne is the 
centre and the principal village, has not been worked out, and 
since my last paper (Journ. Bot. 1904, 236) on the Dorset Flora, 
several plants worth noting have been met with, and some species 
and varieties have been added to the county list. These are 
marked with an asterisk. 
Most of the following notes refer to this area, in District F, an 
area with no stream larger than a large brook, the River Cran, 
but with varied soil, heathland and chalk being divided by an 
irregular band of the London and Reading beds; a mixture which 
is very favourable to variety as well as profusion of flowers. The 
