The Flora of Disko Island and Adjacent Coast of West Greenland. 117 
Vv 224. Pirola grandiflora RKapius (P. rotundifolia var. gr. 
Autt., var. pumila Hook). 
On heath-land, sometimes in thickets and herb-mats. 
Very common throughout the whole area. 
Widely ranging in West Greenland, with northern limit north of 
79°. however becoming scarce south of 64° (Ros.); East Greenland 
scarce. In Greenland a northern type. 
Ranging from the shore as far as dense vegetation is found, not 
occurring in purely mineralic soil. 
Flowers early and fructificates abundantly. 
Normally covered with snow during winter. 
Not much varying. At the borders of thickets, especially in the 
southern parts of the area taller specimens with richer inflorescences 
occur. LANGE has reported a forma J/utescens with yellowish petals. | 
am inclined to consider the plants in question only discoloured her- 
barium specimens. The petals of all live plants seen by us during many 
years were pinkish, not pure white as in P. rotundifolia, nor greenish 
white. 
By several authors considered an arctic form of P. rotundifolia, 
but we think the morphological characters alone sufficient to keep it 
distinct (see for instance Rapius: De Pyrola et Chimaphila Lips. 1821—29, 
Wanrainc: Bot. Tidsskr. 15 p. 165, Aprometr: Bibl. Bot. 42a p. 47 ete.) 
Its distribution in Greenland shows, that it is of high-aretic, west- 
ern origin, immigrated to Greenland over Smith’ Sound. 
The flowers of Pirola grandiflora are among the most fragrant in 
Greenland, the smell recalling that of Convallaria mayjalis. 
Pirola rotundifola L. var. arenaria LANGE (an = var. arenaria 
Koch?) 
Under this name is several times recorded a plant from Southern 
Greenland, ranging from 60° to about 69°. I doubt the identity of the 
plants seen in H. H. with this European form, and I should rather 
consider them to be forms of the preceding grown in thickets. 
a & 225. Pirola grandiflora > minor n. hybr. 
Aug. 13, 1913 TuHorssorn Porsitp collected two specimens of 
Pirola near the outflow of the springs in the valley Osterdalen on South 
Disko, 69°15’. He labelled them: ‘“P. grandiflora, extraordinarily late 
flowering’, as the said species that year everywhere was in fruiting stage 
at that date. 
Unfortunately | did not see the plants till the winter 1913—14, 
when the collector had left Greenland, and during the subsequent years | 
