K|ii.ii 'I'l All II (l!to;5) |). .")():?, luijiliDrhifi iirrfoUdla Scliciilz. I'l. Vn.sc. .Iciiis. in \\\i\. Sv. 

 \(l. Alv:i(l. IhiiRiliiit^. Wll (I.SXS) |). 158 her. .iMii.uiinin.. \\wu\um\,. {VMS) p. 'Mb. 



C'-oininoii ill llic I'ljanUai counliy niul in llic Iracls liavorsed hordcrinf^ upon Sibe- 

 ria, especially iu open copse wood of birch and oilier foliage trees, where il is a cliarac- 

 leristic plant: alon^^ the river Algiae, at I'sl Algiac, in the Altaian, near the tree limit, at Ust 

 Sisli-kem, and on llic Kaiiisara. (".oilic lid in Ihiwci in llic second half of July and in 

 llic first half of August. 



All of liic specimens collected are distinguished hy iiaving the bracts of the invo- 

 hicels small, roundish, broadly cordiform. 17 mm. in diameter. The involucre consists of 

 3 — 4 bracllets of a much varying size and shape, 0,3 — 1,4 cm. long, from nearly circular 

 to narrowly ovate, with slightly pointed apices. The stem, sometimes rather much 

 twisted, is 30 — 50 cm. high: llic lower leaves coniiiioiiiy 7 — X cm. long (rarely to V'> cm. 

 long), and about 2 cm. broad, broadly lanceolate, clasping the stem, or also rather sud- 

 denly narrowed into a shorter or longer petiole, llic apex slightly .subobtusc or sub- 

 acute, frequently furnisiied with a fine prickle. The upper leaves are sessile, shorter, to 

 nearly cordiform. with a broad, cordiform base clasping the stem. The plant is of a 

 rather strongly marked yellow, especially so the upper parts. 



Distribution: The variety (tiircnui occurs in south-eastern Russia, Turkestan, Dzun- 

 garia, southern and eastern Siberia (in the Yenisei valley to about 58° noi-tli lat), through 

 the Altai and Sayansk regions, eastwards throughout Trans Baikal and northern China 

 to the Amoor Province, nortliern Mongolia. 



Bupleuruni triradiatum (Hoffm.) Adams, Nouv. Mem. Sec. Natur. Moscou IX (1834) 

 p. 235; Tuiczan. Cat. Baical. no. 510; Ledeb. Fl. Ross. II, p. 264; Tuiczan. Fl. Baical.- 

 Dahur. (1844) p. 719, no. 50b;KpLi.i. (tj. A-rr. II (H)03) p. ,504; Ko30-Ilu.iiiiicKift, SoiiTmnbia b-b 

 <I>eA<JenKO, $.1. A:uaT. IVicciu 10 (I'Jlo) p. 14. B. laniinculoides var. Iriradialum (,\dams) 

 Regel, Wolf, Umbellif. in Engl. Pflanzenr. H. 43 (IV, 228, 1910) p. 117; Koso-Poljanski, 

 Epit. fhiplennnn Ro.ssiae (l'.n4) p. 198. B. rnminndoides /J oblongifoUuui I.cileb Fl. 

 Alt. I, p. 348. 



Stems 15—20 cm. high, generally unramified. The basal leaves few, narrowly ovate- 

 lanceolate. Bracts of the involucre 3, mostly of unequal size, to 1 cm. long, ovate, witii a 

 cordiform base, more or less subobtuse at the apex. Umbels 3- to 4-rayed. Involucels 

 of 5 — 8 small bractlets, G — 7 mm. long, obtuse at the top, and sometimes furnished with 

 a fine point. Each umbellet consisting of 20 — 25 flowers. In the .\ltaian. in grass-grown 

 places above the tree limit, not unfrequently accompanying Bcliiln roluiuiifolKt. in places 

 grown with lichens and mosses. Collected in full flower at the end of July. 



Distribution: Turkestan, southern Siberia, through the .\ltai and Sayansk regions, 

 northern Mongolia, Trans Baikal, eastwards to Kamtciiatka and the .\inoor Province, Sak- 

 halin, Japan. North .\merica. 



Bupleuruni mullinervc DC. in Mem. Soc. Pliys. el Hist. Nat. Geneve IV (1828) p. 500; 

 Wolir. I'mbcllif. in Engl. Pflanzenr. H. !3 (IV. 228. 1<I10) p. 110: Tuiczan. Cat. Baical. 



