The Botany of Iceland - 01.12.1942, Blaðsíða 137
THE PTERIDOPHYTA AND SPERMATOPHYTA OF ICELAND
135
Life-form: H.
In wet places, along rivulets; in moist mossy places; often along gutters or drains
from inhabited places.
Flor. VII—VIII; fr. mat. VIII.
Max. height: 36 cm ; average : 17 cm.
Geogr. area: North America: Labrador and Newfoundland to Alaska.—Greenl. :
W. 62°30'—65°25'.—Eur.: Fær.; E.S.I.; throughout most of Europe.—Northern
and western Asia.—Africa : Algeria.
Dactylis glomerata Linn.
Babington, 1871, p. 344.—O. & Gr., 1934, p. 15.
First recorded by Babington, loc. cit., from Skálholt and Reykjavík—on the authority
of Mörch.
Cultivated, and sometimes occurring as an escape from cultivation. Found in
several places in S.W., especially near Reykjavík.
60. Deschampsia alpina (L.) R. & Sch., Syst. veget. II (1817)
p. 686.
Aira alpina, K. & M., 1770, p. 204.—Babington, 1871, p. 342.—Gronlund,
Isl. Fl., 1881, p. 127.—A. caespitosa L. var. alpina L., Stefánsson, Fl. Isl.,
ed. 1, 1901, p. 59.—D. alpina (L.) R. & Sch., Ibid., ed. 2, 1924, p. 68.—
A. alpina L., C.H.O., Fl. arct., 1902, p. 113,—D. alpina (L.) R. &' Sch.,
O. & Gr., 1934, p. 22.
Flora Dan. tab. 1625.
Icelandic: Fjallapuntur. Danish: Fjæld-Bunke. English: Mountain Hair-grass.
This plant is considered by Ostenfeld and some other authors as a viviparous,
alpine form of Deschampsia caespitosa; it is here regarded as a separate species.
Cp. also Porsild, 1920, p. 38. Normally developed spikelets are very rarely seen
in this plant.
Especially common in the central highland, but it is also frequent throughout
the lowland ; often in company with D. caespitosa.
Life-form : H.
In grassy moors, along rivulets, on moist clayey or sandy flats on lakes, especially
at a higher level.
Max. height: 67 cm; average : 31 cm.
Geogr. area : Am.: Labrador.—Greenl. : W. 60°—67°44'. E. 60°—66°36'.—Eur.:
Fær.; S.; northern Scandinavia, northern Russia, Spitsbergen, Novaya Zemlya.—
Asia: Northern Siberia.
Deschampsia atropurpurea (Wg.) Scheele.
Aira alpina Hornemann, Forsog, ed. 2 (1806) p. 67.—A. atropurpurea Wg., Glie-
mann, 1824, p. 137,—Babington, 1871, p. 342.
j This species is recorded for Iceland by Hornemann, loc. cit., as also by Gliemann,
oc. cit., Babington too has entered it in his list. There are, however, no specimens
m evidence, and it may be doubtful whether it has really been found in Iceland.
u tén, in his Fl. of Kamchatka I, 1928, p. 111, records it for Iceland, undoubtedly
°n the authority of the above-cited authors.