Lathyrus humilis Fischer in DC. Prodrom. II, p. 378 (sub « Orobiis») ; Tavczan. Cat. 

 Baical. no. 382; Tuiczan. Fl. Baical.-Daliur. (1842) p. 793, no. 371; KpBiJi. •I'.i. Ajit. II 

 (1903) p. 337. Lathyrus allaicus Ledeb. Fl. Alt. Ill, p. 355; Karel. et Kiril. Enum. PI. Fl. 

 Alt. no. 282. L. altaicus /3 humilis Ledeb. Fl. Ross. I, p. 682. 



In shady woods of foliferous trees on the Upper Sisti-kem. In part done flowering at 

 the end of July. 



Distribution: Eastern Russia, southern Siberia, northwards to about 62K'° north 

 lat, northern Mongolia, Manchooria, the western Himalayas? 



Lathyrus tuberosus L. Spec. PI. ed. II (1763) p. 1033; Ledeb. Fl. Alt. IIL p. 353; Karel. 

 et Kiril. Enum. PI. Fl. Alt. no. 281; Ledeb. Fl. Ross. I, p. 682; Kptiji. $j. Ajit. II (1903) 

 p. 338. 



Rather common on islets in the Lower Abakan, especially in meadows and open 

 brush-woods, etc. Collected flowering at the end of June. 



Distribution: Europe, northwards to southern Scandinavia (introduced), south- 

 wards to middle Italy, south-western Asia, southern Siberia, eastwards to the government 

 of Yeniseisk, North Africa. 



Lathyrus pratensis L. Spec. PL ed. II (1763) p. 1033; Ledeb. Fl. Alt. IH, p. 353; Tur- 

 czan. Cat. Baical. no. 380; Karel. et Kiril. Enum. PL Fl. Alt. no. 279; Ledeb. Fl. Ross. L p. 

 683; Turczan. Fl. Baical.-Dahur. (1842) p. 792, no. 369; Epbiji. $jt. Ajit. II (1903) p. 338. 



The material collected shows that the species is subjected to great variations. The 

 leaflets are generally narrowly lanceolate, broadest in the middle, and tapering towards 

 the ends, 3 — 4 times as long as broad. The stipules are generally somewhat shorter than 

 the petiole, to only one half of its length. The petals are sometimes of a greenish tinge. Scat- 

 tered on hills and in meadows on islets in the rivers Yenisei and Abakan, at Kushabar, 

 in the taiga territory on the Amyl, near Ust Algiac, Ust Sisti-kem, the Kamsara, and at 

 Tapsa. The species begins flowering about the middle of June. 



Distribution: Europe, Caucasia and south-western Asia to the Himalayas and Cash- 

 mere, Siberia,'northwards to the Arctic Circle, and eastwards to Trans Baical, northern 

 Mongolia, Japan? 



Lathyrus pisiformis L. Spec. PL ed. II (1763) p. 1034; Ledeb. Fl. Alt. Ill, p. 354; 

 Ledeb. Fl. Ross. L p. 685; Turczan. Fl. Baical.-Dahur. (1842) p. 794, no. 372; KptM. <I>ji. Ajit. 

 II (1903) p. 339. 



In mixed woods of foliferous and coniferous trees about Ust Sisti-kem, and on the 

 Dora Steppe. Flowering and in part done flowering in the first half of August. 



Distribution: Eastern portions of middle Europe, south-western Asia, Siberia, north- 

 wards to about 61J^° north lat, and eastwards roughly to the government of Irkutsk, 

 northern Mongolia. 



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