116 CRITICAL NOTES ON SOME SPECIES OF CERASTIUM. 
113. C. =iaeeteemet Lund. ‘Desm. Suec.’ in Acta R. Soc. 
Scient. Ups er. 8, viii. no. ii. 1870, 87 (sep.), t. iii. f. 17. The 
forms ried were ——. more deeply ‘constricted than the Swedish 
ones, the apex of the sinus was more conspicuously ampliated, and 
the protuberance in the vertical view considerably reduced. 
membrane was minutely scrobiculato-punctate, as in the type. 
Long. 22-23 p; lat. 19-21 p; lat. isthm. 5°2 p; crass. 12 p. 
5. Chippenham Fen (Pl. 394, fig. 12). 
(To be continued.) 
CRITICAL NOTES ON SOME SPECIES OF CERASTIUM. 
By Frepreric N. Wits, F.L.S. 
cee from Journ. Bot. 1898, p. 387.) 
C. . Sp. Plant. 488 (1753).—Kew Herbarium 
— ee matin frail -specimens of this very common plant. The 
species is cosmopolitan. In the Old World it ranges from the 
Arctic Sea to oe (Loureiro), and in the New World from 
Labrador to the island of Tierra del Fuego (Hooker f.). Hooker 
mentions its occurrence in the Him alayas, but it is omitted from 
Fl. of British India. As regards altitude, specimens of C. arvense 
var. strictum have been collected at 2750 metres in the Eastern 
Caucasus (C. A. Meyer), and specimens of C. arvense var. arvensiforme 
at 3500 metres in the Andes of Bolivia (Mandon). 
VENSIFoRME Wedd. in Ann. Sc. Nat. 1864, 296 [= C. 
arvense Var. ienciactiuin Rohrb. in Linnea, xxxvil. 305] '—Founded 
on specimens collected by Weddell and Mandon in the Andes of 
Bolivia, as mentioned above. The we characters distinguish 
the plant among the many forms of C. arv 
Caules diffusi; folia lanceolata vel Yineart lahiecoluas neste 
uscula vel mucrone obtuso subcalloso acuminata; flores 
sepala 6-8 mm. Differt habitu magis presertim foliis Dnierodori. 
bie ac latioribus quam certis characteribus. 
. CO. Arnanticum Dur. in Duch. Rev. Bot. ii. 487 (1846-47). 
r n examination of authentic specimens in Herb. Kew., 
should be disposed to reduce the species to C. Duriai, which has 
not hitherto been recorded in Algeria, but which occurs in the 
south of Spain and in Asia Minor. The one of both species 
seem to match, ait the description of C. Atlanticum is almost 
a verbal transcript of C. Durigi. It is also allied to C. age 
which, according to Battandier and Trabut, is ‘‘voisin du C. R 
I have little hesitation, therefore, in adding C. Duriai to the ace 
of Algeria, as represented by these specimens. In the Index 
Kewensis Spain is given as the habitat of C. ‘Ailanticum. which is an 
Tome slip. According to Durieu, it ranges from Constantine to 
meen 
ratum Lapeyr t. Abr. Pyren. 265 (1818) ; a re 
Fl. Boar t “102 (1795- PTBbty = U. alpinum vax. atratum Ro 
