I )islril)uli(m: Norllicni and middle luiiopo. soulli \v;ii(ls lo l"i-:mcc, Swilzcrlaiul 

 and Ausli'o-I lunyaiy, Sil)i'iia, in llic ^'l■lli.s(■i valley iioilliwards lo (i'J north lal.. casl- 

 wards lo KamlelialUa, 11(11 Iherii Mongolia, the Aiiiooi- Province, Sakhalin. .Ia])an, Norlli 

 America, Greenland. 



Vaccinium Myrtilliis L. Spee. PI. cd. II (17(i2) p. 1<.I8; I.edeh. Fl. All. II. p. (j(i; liii- 

 czan. Cat. Ikiieal. no. 758; Kaiel. el Kiril. Enuin. Pi. Kl. Alt. no. 571; Ledei). Fl. Ross. II, 

 p. 902; TuiTzan. Fl. liaical.-Dahur. (1818) p. 488, no. 737; Herder, PI. Hadd. (1872) p. :51 1. 

 no. !'.•; h" [11.1.1. <I>.i. .\.ii. Ill (1904) p. 7H4; KysHeuoBi., BepecKOiii.iu iii. 'I'e,i,'ieiii;u. 'I'.i. A;)iar. 

 Pdc-ciu 9 0911J) p. (u. 



Common in the snbalpine taiga along the rivers Amyl, Sisti-kem, and Bci-kem. In 

 the Altaian found by me at an altitude of about 1800 m. above sea-level, flowering and in 

 part past flowering at the end of July. The fruit ripens in subalpine regions at the end of 

 July and tlie beginning of August. 



Distiibution: Europe, except the soutliern parts, Caucasia, the north of Asia Minor, 

 Siberia, in die Yenisei valley northwards to 68° 35' north lal., eastwards to Kamtchatka, 

 northern Mongolia, NorOi America. 



Vaccinium uliginosum L. Spec. PI. ed. II (1762) p. 499; Turczan. Cat Baical. no. 7.59; 

 Ledeb. Fl. Ross. II, p. 904; Turczan. Fl. Baical.-Dahur. (1848) p. 488, no. 738; Herder, PI. 

 Radd. (1872) p. 319, no. 25; Kptu. *j. Ajit. 111(1904) p. 785; KyaueuuB-b, bepecKuiii.ui irb 

 •teftWHKO, $Ji. Aslax. Pocciii 9 (191(5) p. 70. 



The specimens collected by me in various localities in the Sayansk districl. dif- 

 fer distinctly from the Scandinavian ones in having the branches completely glabrous, 

 and always destitute of tlie fine, short hairs covering the year's shoots in the typical plant, 

 By an exact examination of what is to be found of Nonvcgian and foreign material of 

 this species in the herbarium of the University at Christiania, 1 have found the pubescence 

 on the year's shoots to be an absolutely unalterable character for European specimens 

 of Vaccinium uliginosum. These completely glabrous specimens from eastern Siberia arc 

 separated by me as 



subspec. imberbe nov. subspec. 



Rcimuli nouelli semper omnino ijlabri. nilidi. numiutim ul m forma hjpica 

 pubescenles: baccae breve slipihitae. pednnculi lanlum 1 — '? mm. hniji; folia cum 

 ceteris comparaia angusla. 



The specimens at hand are, besides, distinguished by having the pedicels very short, 

 only one to a few mm. long, and the leaves frequently somewhat broader, more equally 

 broad, rather suddenly narrowed towards the base. This one is rather frequently to be 

 met with in the taiga territory, and is also very common in the .Mtaian, in turfy bogs, 

 etc., near the limit of tree vegetation. The fruits ripen at end of July and the beginning 

 of August. The typical species does not occur in my collections from the Sayansk district 



Distribution: The species is distributed in northern and middle Europe, southwards 

 lo middle Spain, middle Italy. Turkey, noithern and middle Russia. Caucasia, Siberia, in 



343 



