832 BULLETIN DE i/hkrbier BOISSIER (ß"^^ SÉR.). 1907 (3) 



in tlie Ulba dislricland abovelhe river Tschuja (Bunge), andabove the river 

 Tessa (Turczaninow,lSW,a subglabroiisform),all in theprovinceofTomsk. 

 Alanchuria ; spécimens in Herb. Pelropolit. collected in 1902 {D. J. LÜwinow). 



Forma pygmasa Williams nom. nov. — Caiiliculi5-9 ctim., pumili tenues. 

 Folia uninervia. vel Irinervia nervis laleralibus fere obsolelis, 3 mm. 

 longa, sed in ambitu paiiUiim laliora quam in forma typica, ssepius in 

 fasciculos axillares imbricata. 



Syn. — Si!, decumbens var. minor Hook, f., Fl. Bril. Ind. I, 234. 



Hab. Sikkim; Lachung valley, at 4800 mètres, Yalloong valley, at 

 3000 mètres, and Kankala {Hooker in Herb. Kew.), Mt. Singalelah 

 (C. B. Clarke, 1870, n. 12575, in Herb. Mus. Brit.). 



The original référence to Ihis form says "sepals 4^^; but in most of 

 the flowers examined there were 5 sepals. 



Yar. 2, uniflora (Fisch.) Williams, comb. nov. — Pulvinatim csespitans. 

 moles duras densas globosas efformans. Radix lignosa valida. Cauliculi 

 subnulli. Folia subulala vel anguste ovato-subulata, infima latius ovato- 

 subulata, carinata ciliolala obsolete trinervia, apice incurva. Cyma subses- 

 silis villosula triflora, floribus alaribus autem ssepius suppressis. Sepala 

 omnino incrassata acuta obsolete uninervia. 



Syn. — • Arenaria cherleriae var. a uniflora Fisch, in Cand. Prodr*. 1. 

 409; St petrœa var. ß temdfolia lusus 2, Fenzl in Ledeb. Fl. Rossica, I. 

 395; St. petrœa var. y, Cherleriae Turcz. in Bull. Soc. Nat, Mose. XY, 610; 

 St. decumbens var. 5, pulvinata Hook, f., Fl. Brit. hid. I. 235, Maxim. Fl. 

 Tangutica, 92 (1889)! 



Hab. Northern India; in Kashmir, Kumaon, and Sikkim. Kashmir, in 

 Baltistan and Ladakh (Thomson, 1847, Stellaria n. 10, Strachey, 1848. 

 n. 25, in Herb. Kew), Palgam, at 3600 mètres {C. B. Clarke, 1876, 

 n. 31071, in Herb. Mus. Brit.). Kumaon. Kala-jowar in British Garhwal, 

 up to 5400 mètres (Duthie Cat. PI. Kumaon, 21 [1906]) (Strachey and 

 Winterbottom, 1848, n. 9), — both in Herb. Kew. Sikkim (Hooker, 1849, 

 n. 246, in Herb. Kew.). Tibet; N. Tibet (Przewalski, 1884); Central Tibet, 

 Gooring Yalley, lat. 30° 12', long. 90° 25', at 5000 mètres (Littledale, 

 1895), between camps 26-27 (Sven Hedin, 14 Sept. 1896); E. Tibet, 

 Tangut (Maximoiüicz); S. Tibet, at Chumbi (Dungboo, 1877, n. 4594, 

 King's coUector, 1882, C. H. Bell, Tibet Fronlier Commission, 1904), 

 which is in the wedge of Tibet between Sikkim and Bhutan. Siberia : 

 near Selenginsk and Graedina in Trans-Baikalia (Georgi Reis. Russ. Reich 

 im Jahr 1772, I. 216 [1775]; Turczaninow, 1832). Spécimens which I 

 ha ve examined, collected in Mongolia and Manchuria, referred to this 

 variety, under the name of Adenoniena petrseuni var. cherlerix, from 

 Iheir somewhat laxer habit certainly belong to var. fasciculata. 



Var. 3. apetala Williams, nom. nov. — Radix lignosa valida. Gaudiculi 

 ramosissimi caespitosi. Folia lineari-trigone vel deinde lineari-filiformia 

 subfalcata, apice subacuta, margine ciliolato-scabra, 4-7 mm. Caudiculi 

 floriferi pedunculiformes (pedunculi) erecti hispiduli solitarii exserli. 

 Sepala incurvo-patentia trinervia, nervo dorsali crasso carinata, apice 



