material is at hand. Near Ust Algiac I have collected specimens of a form with narrow, 

 equally broad leaves, to 25 mm. long, and 6 mm. broad. 



Specimens from alpine tracts in the Altaian have the stems densely pubescent, 

 and the petals considerably shorter, only about 3 mm. long, i. e. one and a half to twice 

 the length of the calyx. The species has been collected flowering by me from the begin- 

 ning of June to the end of July. 



Distribution: Northern Scandinavia, northern and north-eastern Russia, almost 

 throughout Siberia, northern Mongolia, Manchooria, China, Corea, Sakhalin, Japan, 

 North America. 



Arenaria serpyllifolia L. Spec. PI. ed. II (1762) p. 605; Ledeb. Fl. Alt. II, p. 175; 

 Karel. et Kiril. Enum. PI. Fl. Alt. no. 170; Fenzl in Ledeb. Fl. Ross. I, p. 368; Williams. 

 Revis. Gen. Arenaria in Journ. Lin. Soc. vol. 33 (1897 — 98) p. 365; KpBiJi. 3>ji. Ajit. I 

 (1901) p. 161. 



Of this rather polymorphous species I have collected only some few specimens on dry 

 hills, near Kushabar. These specimens are distinguished by their much branched stems, 

 from 10 to 15 cm. high, ascending and geniculate at the base, especially in their upper 

 parts densely glandular hairy. The leaves are 3 — 4 mm. long, 2 — 2,5 mm. broad, tapering 

 upwards, and acuminate, with 1 or 3 nerves. The sepals are lanceolate, tapering upwards, 

 mucronate at the summit, generally 3-nerved, glandular hairy along the nerves, broadly 

 scarious-margined. The scarious-margin is about as broad as the green part of the 

 sepals. The petals are about % shorter than the calyx. The ripe capsules are yellow, 

 glabrous, and glassy, of about the same length as the sepals, or somewhat longer, urceo- 

 late, their lower part globularly inflated. The pedicels are straight, capillaceous, 2 — 3 

 times as long as the calyx. Rather flowery. Taken with ripe fruits, and some in flower, 

 in the middle of July. The seeds are small, about 0,6 mm. in diameter, globular-reni- 

 form, of a nearly black colour, slightly shining, densely rugose in regular rows. 



Distribution: Europe, northwards to about 69° north latitude, the Caucasus and 

 south-western Asia to Tibet, the Himalayas, India, Siberia, Corea, Japan, north and tro- 

 pical Africa, North America. 



Alsine verna (L.) Bartl. Beitr. II (1824—25) p. 63; Fenzl in Ledeb. Fl. Ross. L p. 

 347; Turczan. Fl. Baical.-Dahur. (1842) p. 591, no. 228; Regel, PI. Radd. (1862) p. 218, 

 no. 302; KpBM. c&jt. Ajit. I (1901) p. 157. Arenaria costata et paniculaia Bunge apud 

 Ledeb. Fl. Alt. L p. 168—171. Arenaria verna Karel. et Kiril. Enum. PI. Fl. Alt. no. 172. 



In the material collected of this very polymorphous species, all the specimens 

 have the stems 1 to 2-flowered, short, 3—5 cm. high, fine, densely tufted, frequently of 

 a darkish colour, ascending, or geniculate below, surrounded at the base by withering 

 leaves. The leaves are 3-nerved, stiff, nearly glabrous, very narrow, 5—7 mm. long, 

 acuminate at the summit, more or less densely appressed to the stem. The upper leaves 

 are shghtly shorter and broader; the bracts are navicular and sUghtly scarious-margi- 

 ned. The stem, especially its upper parts, and the sepals are beset with scattered, short, 



218 



