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8. Leaves soon reflexed, 5 
Stray Contributions to the Flora of Greenland I—V. 31 
Damp, shaded woods in E.N. America to Quebec; (not in Europe). 
G. tinctorium L. 
Fig.: Gray Man. p. 750. 
15 mm. long, distinctly scabrous 
on margins and midribs of lower side. Plant erect, 0.5—3 dm. 
high, from capillary rootstocks. Inflorescence as in the pre- 
ceding species, flowers rather larger, but fruits much smaller, 
1.0—1.5 mm. in diam. 
In mossy Larix- and Thuja-swamps of bor. N. America to 8. Labrador; 
(not in Europe). 
G. labradoricum WIEG. 
Fig.: Gray Man. p. 750. 
II. Corolla trimerous. 
A. Stems distinctly retrorse-scabrous. 
a. 
Flaccid and weak, freely branching, often densely matting. 
Flowers solitary or geminate on capillary, arcuate, 0.5—2 cm. 
long peduncles. Leaves narrow, linear-lanceolate, often re- 
flexed, their margins and midribs as well as the peduncles re- 
trorse-scabrous. Fruits 1.25—1.50 mm. in diam., only halfway 
united. 
Bogs, mossy woods and wet lake-shores in bor.-subarct. N. America to 
Labrador, bor.-subarct. N. Europe, Iceland (?), Styria (one locality). 
G. trifidum L. 
Fig.: Fl. D. 48; Rchb. 1198, Il; Hegi: VI. 1. p. 223; Gray Man. p. 750. 
Stouter, suberect. Flowers in terminal cymes of 2’s or 4’s, 
on thick, straight and glabrous peduncles. Leaves spatulate, 
retrorse-scabrous on margins and midribs. 
Swamps and damp places in Pac. N. America, Cordilleras, and E., temp.- 
bor. N. America to Québec and Newfoundland; (not in Europe). 
G. Claytoni Micux. 
Fig.: Gray Man. p. 750. 
B. Stems indistinctly scabrous or glabrescent; leaves scabrous 
on margins and midribs. 
a. 
Flowers solitary or paired, on straight or arcuate, axillary, very 
slightly prickly peduncles. A glabrescent form of the pre- 
ceding, more boreal in distribution and especially from brackish 
and lime-stone localities in E. N. America to S. Labrador. 
G. Claytoni var. subbiflorum Wine. 
