Dislrilnition: The species is distributed over the greater pjirt of Europe, except the 

 most northern and soullurn ]);irls. soulli-w cslfni Asi;i. Siliciia. in the Yenisei valley 

 northwards to about (32 nortii hit., and eastwards to tlie Sea of Ukliotsk, northern Mon- 

 i^olia, Manchooria, Corea, northern Ciiina. North Africa. Tlie variety ninsnvnnlhiim occurs 

 in the eastern ])art of the area, viz. from about the Yenisei througii 'lians liaikal and 

 Dahuria Id Mancliooria, China and Corea. 



Cynoylossuin officinale L. Spec. Pi. ed. II (17()2) |). 192: Ledeb. FI. Alt. I. p. l'J5: 

 Karcl. el Kiril. I'Junn. Pi. l"l. All. no. (i22: Ledeb. V\. Ros.s. 111. p. Ki.'r Herder. PI. P,add. 

 (1872) p. .3.33, no. I'.ll; j;|,i,i.i. 'I'.i. A.n. IV ( I'.iOT) p. 'J()<». 



Scattered in dry. .sandy places on llie islets in llie rivci- .\l)akan. at Askys, and near 

 liai>ilali()ns on llie steppe, at Csl Kamuishlo. In flower and in |>;nl done flowering in the 

 second half of .June. 



Distribution: Kuro|)e, except the most northern and .sonlhern parts, south-western 

 Asia, Siberia, northwards to GS.K north lat. in the Yenisei valley, and eastwards to Trans 

 Baikal. North America (adventive from Europe). 



Labi a t a e Jl'SS. 



:Mentha arvensis L. Spec. PI. ed. II (1763) p. 806: Ledeb. Fl. Alt. IL p. 400; Turczan. 

 Cat. Baical. no. 897: Karei. et Kiril. Enum. PI. Fl. Alt. no. 689: Ledeb. Fl. Ross. Ill, p. 

 338: Turczan. Fk Baical.-Dahur. ( 18.31 ) p. 365, no. 893; Herder. Pi. Radd. (188.3) p. 119, 

 no. 521: KpM.i. <I).i. A.n. IV (1907) p. 1006. .1/. camidensisTwrczAn. Fl. Baical.-Dahur. (1851) 

 p. 365, no. 891. ,1/ luisliincd Turczan. Cat. Baical. no. 898. 



Pretty common on islets in the river Abakan, and in moist places on the Amyl, near 

 Kushabar. In the month of June, I have only collected young, flowerless plants. In the 

 Urjankai country I have collected the species at Ust Sisti-kem and at I'st Tara-kem, near 

 the liver. 



Specimens from the different localities vary rather nuuh in .stature, in hairiness, 

 ramification, shape t)f the leaves, length of the petioles, etc. 



Distribution: Nearly all over Europe, except tlie most southern and northern parts, 

 Siberia, in the Yenisei valley northwards to 67,'-^ north lat.. and eastwards to Kamt- 

 cliatka. the Amoor Province and Manchooria, south-western Asia to the Himalayas, 

 noiiJiern China, Sakhalin. Japan, Noilli Africa, and North America (adventive from 

 Europe). 



Mentha aquatica L. Spec. PI. ed. II (1763) p. 805: Ledeb. Fl. Alt. II. p. 399: Ledeb. 

 Fl. Ross. Ill, p. 337; Kphu. lU.i. A.it. l\ (1907) p. 1007. 



In thickets on the banks of the river Abakan, near Askys, in humid. i)artly inundated 

 places. Young, flowerless specimens collected in June. 



Distribution: Europe, except the exti'eme north, Caucasia and south-western Asia. 



;^67 



