MR. F. N. WILLIAMS ON THE GENUS SILENE. 81 
tt Calyx evenius. 
109. SILENE TRAGACANTHA, Fenzl, ap. Boiss., Fl. Orient., i. 
p. 621; Rohrb., Monogr., p. 125. 
Adde : Pedicelli medium versus vel infra calycem bracteati. 
Petala bipartita. 
This plant has the habit and appearance of a species of 7’ragacantha or 
Acantholimon. Boissier’s description is fragmentary, and, as he says, is 
drawn up from imperfect material, additional characters are here given from 
examination of specimens in Herb. Kew. Rohrbach’s description was 
drawn up from specimens preserved in the Vienna Herbarium. 
Hab. Mt. Kuh-Daéna, in S. Persia. 
B. Calyx dentibus acutis, striis anastomosantibus. 
110. S. Ecutnus, Boiss. et Heldr., Diagn. Pl. Nov. Or., Ser. II. 
v. p. 56; Rohrb., Monogr., p. 125. 
A formis minoribus S. subulate preter petala foliis planis 
aceroso-pungentibus distincta. 
Hab. Mt. Budrun, near the town of Isbarta, in Anatolia. 
111. S. susunara, Botss., Diagn. Pl. Nov. Or., Ser. I. viii. p. 33; 
Rohrb., Monogr., p. 127 (8S. caryophylloides var. nardifolia in 
parte). 
Caules cespitosi erecti viscido-pubescentes pumili uniflori. 
Folia anguste linearia subtriquetra rigida subulata scabride 
pubescentia basi ciliata. Flores longe pedicellati, Calyx 
tubulosus glanduloso-pubescens, dentibus oblongis. Petala 
alba, unguibus exsertis dente acuto auriculatis, lamina 
obcordata parva, appendicibus binis oblongis crenulatis. Cap- 
sula oblonga carpophorum glabrum equans. Semina dorso 
granulata, leviter canaliculata, faciebus plana. 
A SS. stentorid differt preeter folia tenuiora calyce post 
anthesin clavato, capsule adpresso nec turbinato. 
Geogr. limits.—E. Baibout, in prov. of Erzeroum. 
W. Gumuchkhane, in prov. of Trebizond. 
112. S. prnpicona, Haussk. in Mittheil. Thiring. Bot. Ver., v. 
(1887) p. 85; et Heft v. (1893) p. 50. 
Caules cawspitosi erecti tenerrimi uniflori, in parte inferiore 
dense foliosi, in parte dimidia superiore bibracteati, inferne 
tenuiter papillosi, superne glanduloso-viscidi. Folia linearia 
acuta papilloso-scabriuscula basi dilatato-vaginantia spe 
subrecurva, in axillis plerumque ramulis sterilibus florendi 
LINN. JOURN.—BOTANY, VOL. XXXII. G 
