ob MR. F. N. WILLIAMS ON THE GENUS SILENE. 
yj. cAUCASICA, mihi. Rami graciles. Pedunculi florum lon- 
giores. Calyx brevior. Styli longe exserti. Forma minus 
canescens. (Radde, exsicc. (1893), n. 674). 
Syn. S. dichotoma var. gracilis, Albof’, Enum. Pl. Transcauc. 
Oceid., p. 32 (1895). 
Hab. Circassia. 
6. EUXINA, Rupr., Fl. Caucasi, p. 184; Boiss., Fl. Orient., suppl., 
p. 92. 
Planta biennis. Caules numerosi, laterales decumbentes. 
Folia basilaria lanceolato-spathulata. Semina minora. 
Geogr. limits—N. Between Poti and Batoum, in Trans- 
Caucasia (var. euxina). 
S. Palestine. 
E. Persia; between Teheran and Tabreez. 
W. Slivno, in E. Rumelia (Skorpil, ex Nym., 
Consp. Fl. Eur., suppl. ii. p. 54). 
b. Semina faciebus curvato-excavata. 
46, SILENE VESPERTINA, Retz., Obs. Bot., ii. p. 31; Willk., Ic. 
Descr. Pl. Nov. Hisp., i. p. 44, t. 294; Rohrb., Monogr., p. 95. 
From Retzius’s description this plant is certainly identical with S. hirsuta, 
Poir., and S. hispida, Desf. By authors it is often confused with S. sericea, 
which, however, differs from it in habit and in the remarkable form of the 
seeds. Itis also near S. hirsuta, Lag. (= S. laxiflora, Brot.), which latter 
is distinguished by cincinni simple never geminate, fructiferous calyx not. 
contracted above with ovate obtuse teeth, and claws of the petals exserted. 
Geogr. linits.—N. Near Trieste, in Istria. 
S. N. Algeria. 
E. Crete. 
W. Portugal (ex Nym., Consp. Fl. Eur., p. 96). 
47. S. pisticna, Willd., Enum. Hort. Berol., p. 476, et herb., 
n. 8660; Schrank, Pl. Rar., t. 39 (micropetala); Rohrb., Monogr., 
p. 96. 
Adde syn. 8. hirsuta, Schousb. ex Ball, in Journ. Linn. Soc. 
(Bot.), xvi. (1877) p. 356. 
S. pilosa, Willd., Enum. Hort. Berol., p. 476 (in 
herb. abest). 
Geogr. limits —N. and E. Minorca, in the Balearic Isles. 
S. Algeria. 
W. Portugal (Daveav, Magn. Fl. Sel., exs. 
n. 1382). 
