Euphrasia frigida

Pugsley

J. Linn. Soc., Bot. 48: 490. 1930.

Common names: Cold-weather eyebright euphraise arctique
Endemic
Treatment appears in FNA Volume 17. Treatment on page 496. Mentioned on page 493, 501.

Stems simple or branched, to 14 cm; branches 1 or 2 pairs, from middle cauline nodes; cauline internode lengths 2–3 (–6) times leaves or, in very compact forms, lengths 0.5–1 times leaves. Leaves: blade oblanceolate to ovate, 2–9 (–12) mm, margins crenate-dentate to serrate-dentate, teeth 1 or 2 (–4) pairs, apices obtuse to acute. Inflorescences beginning at node 2–4; bracts green, sometimes purplish, broader than leaves, ovate to obovate, length not more than 2 times width, (2.5–) 4–11 (–14) mm, surfaces sparsely to moderately hirsute and glandular-pubescent and hairs glandular, stalks 1-celled or 2-celled, 0.1–0.2 mm, teeth 2–5 pairs, as long as or slightly longer than wide, apices subacute to acute, rarely aristate. Flowers: corolla white, sometimes tinged lilac, 5–8 mm, abaxial lip exceeding adaxial. Capsules oblong to elliptic or obovate, 6–8 mm, apex retuse or emarginate. 2n = 44.


Phenology: Flowering summer.
Habitat: Wet or dry, rocky, grassy, or sandy places, usually coastal.
Elevation: 0–1000 m.

Distribution

Greenland, Nfld. and Labr., Que.

Discussion

H. W. Pugsley (1933b) chose a glandular-pubescent specimen from Greenland (Ujarasguit, Godthaabs Fjord, W. Greenland, S. Hansen s.n., 13 VIII 1885, C) as the lectotype of Euphrasia frigida, fixing application of the name E. frigida to the glandular-pubescent form with medium-sized corollas that occurs in Greenland, Newfoundland, and Quebec (P. D. Sell and P. F. Yeo 1970). See 16. E. wettsteinii for the widely distributed and circumpolar, small-flowered, eglandular form that has traditionally been treated as E. frigida (G. Gussarova 2005).

Euphrasia latifolia Pursh and E. latifolia Pursh ex Wettstein, names sometimes considered to be later homonyms of E. latifolia Linnaeus and that apply here, were never formally published.

Selected References

None.

Lower Taxa

None.

"broader" is not a number."-1timesleaves" is not declared as a valid unit of measurement for this property.

... more about "Euphrasia frigida"
Emarginate (?) +, Retuse (?) +, Aristate (?) +, Subacute (?) +  and Acute (?) +
Galina Gussarova +
Pugsley +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
oblanceolate;ovate +
0.2 cm2 mm <br />0.002 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
not leathery +  and fleshy +
alternate +  and subopposite +
1.1 cm11 mm <br />0.011 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
purplish;green +
ovate +  and obovate +
2 +  and 1 +
tubular +  and flattened +
not accrescent +
oblong;elliptic or obovate +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2-3(-6) times leaves +
Cold-weather eyebright +  and euphraise arctique +
tinged lilac +  and white +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Greenland +, Nfld. and Labr. +  and Que. +
0–1000 m. +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Wet or dry, rocky, grassy, or sandy places, usually coastal. +
axillary +  and terminal +
deciduous +
triangular +
short-ciliate +  and glabrous +
incised +, dentate +  and crenate +
crenate-dentate to serrate-dentate +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering summer. +
J. Linn. Soc., Bot. +
10 +  and 18 +
fusiform +
2-celled +  and 1-celled +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
subequal +
branched +  and simple +
aerial +  and subterranean +
0 cm0 mm <br />0 m <br /> (14 cm140 mm <br />0.14 m <br />) +
not fleshy +
glandular-pubescent;hirsute +
Euphrasia frigida +
Euphrasia +
species +
slightly longer than wide +
2 +  and 5 +