OF THE GENUS ARENARIA. 399 
Other synonyms usually referred to A. graminifolia, Schrad., 
should thus be referred to A. sawatilis:—A. stenophylla, Ledeb., 
Ind. hort. Dorpat, 1823, et Fl. Altaica, ii. p. 165 ; A. longifolia 
(non Bieb.), DC. Prodr. i. p. 402 (the reverse is cited in * Index 
Kewensis’); A. procera, Spreng. Hist. Rei Herb. ii. p. 268 
(1808), et Hornem. Hort. Hafn. p. 424 (1813); A. graminifolia, 
var. a. parviflora, Ledeb. Fl. Rossica, i. p. 363; A. otitoides, 
Adams ex Cand. Prodr. ; and finally Eremogone longifolia, Fenzl. 
Geogr. limits.—N. Siberia: R. Irtysch. Æ. Lake Baikal. 
S. Trausylvanian Alps. W. Croatia. 
Ieonogr.— Ic. Tuurin. xiv. t. 73. £. 8; Reichb. Ic. Fl. Germ. 
Helv. 4934 (Pettera graminifolia). 
105. A. roxatrorta, Bieb. Fl. Taur. Cauc. i. p. 345, iii. p. 308 
(1808); Ledeb. Fl. Rossica, i. p. 362 (excl. var. 8). 
The type-specimens of this plant are in Willd. herb. no. 8752 
(fol. 4, 5). 
Hab. South and Central Russia, and South and Western 
Siberia. 
Iconogr.— Ledeb. Ic. Pl. Fl. Rossic. 403. 
106. A. AcuLEATA, S. Wats. Bot. King’s Exped. p. 40 (1871); 
Robinson, in Proc. Amer. Acad. xxix. p. 294 (1894). 
Glabra, glauca, 15 centim. Folia subulata rigida aculeata 
Cymæ pauciflorz. Sepala late ovata acuta. Petala elliptico- 
lanceolata, emarginata vel eroso-dentata, 14-2-plo calyce longiora. 
À plant distinguishable from those allied to it by the character 
of the margin of the petals. The sepals are variable, and become 
more acute in the southern form, which is more difficult to dis- 
tinguish from those varieties of .4. congesta which have an open 
inflorescence. 
Geogr. area. W. United States, from Oregon to Arizona. 
Subsectio 2. 
Apud multa folia, axilla fasciculos foliorum adentes. 
107. A. pryprpea, Boiss. Diagn. Pl. Or. nov. Ser. I.i. p. 49 
(1842); FI. Orient. i. p. 696. 
Hab. Prov. of Marasch, between the Eastern Taurus and 
the R. Euphrates; occurs up to 2700 metres on rocky places. 
