Poa rigens Hartm. versus Poa arctica R. Br.
Botaniska institutionen i Uppsala 1934. 21 pp + two b/w plates. Stapeled. Symbola Botanicae Upsalienses 3 - Arbeten från botaniska institutionen i Uppsala. Insert with some unevenesses and a 3x3 mm hole in one page. Cover worn and with name in pencil on front part. 25.5x18.4x0.15 cm, 84 g