170 MR. F. N. WILLIAMS ON THE GENUS SILENE. 
utrinque acute auriculatis, capsule cum carpophoro proportione, 
seminum forma. 
Geogr. limits.—N. Sierra de Toledo, in prov. of New Castile. 
S.and FH. Algeria; slopes of Mt. Atlas, above 
Blidah. 
W. Serra Monchique, in Portugal. 
352. Sienn catHouica, Att., Hort. Kew, ed. II. iti. (1812) p. 85; 
Reichb., Ic. Fl. Germ. Helv., n. 5103; Rohrb., Monogr., p. 215. 
Adde Syn. S. Campelli, Sang., Fl. Rom. Prodr. Alt., p. 770, 
t. 7. 
Rohrbach gives the environs of Paris as the northern limit of the species, 
but here it can only be considered a casual introduction. He also gives 
Aragon as the western limit, but the Spanish specimens are to be referred 
to S. italica. The claws of the petals, unlike those of the preceding 
species, are slightly exserted from the calyx. 
Geogr. limits.—N. Prov. of Ekaterinoslav, in S. Russia. 
EH. Crimea. 
S. Calabria (Tenore). 
W. Near Rome. 
353. S. Nivea, Otth, in DC. Prodr., i. p. 377; Rohrb., Monogr., 
p. 236. 
Canlis erectus laxus, simplex, glaber vel vix puberulus. 
Folia numerosa, elongato-lanceolata, vel lanceolata, acuminata, 
margine minutissime serrulato-scabrida, superiora cum bracteis 
herbaceis paullatim minora. Flores pauci, laxe dichotomi, 
longissime pedicellati. Calyx oblongo-tubulosus glaber, nervis 
anastomosantibus, dentibus ovatis obtusis, late albo-margi- 
natis, glabris. Petala alba, unguibus longe exsertis, obovato- 
cuneata, bifida, lobis late ovatis, appendicibus parvis obtusis. 
Capsula subglobosa, carpophorum equans. Semina dorso 
canaliculata. 
Geogr. limits.—S. Tllinois. 
Hi. Peunsylvania. 
N. Minnesota | (MacMillan, Metasp. Minnes. 
W. Iowa J Valley, p. 220 [1892]). 
354. S. srentava, Ait., Hort. Kew, ed. II. iii. (1812) p. 84; 
Sims, Bot. Mag., t. 1107 (Cucubalus) ; Rohrb., Monogr. p. 216. 
Geogr. limits—N. Canada. FE. Massachusetts. 
S. Georgia. W. Texas. 
