Primula egaliksensis
Primula anvilensis
Greenland primrose, primevère du fjord egalik
boreal primrose
not aromatic, abruptly petiolate;
petiole not winged;
blade without deep reticulate veins abaxially, elliptic, 1.5–5.5 × 0.5–0.9 cm, thin, margins entire, undulate, or slightly denticulate, apex rounded, surfaces glabrous.
not aromatic, indistinctly petiolate;
petiole narrowly winged;
blade without deep reticulate veins abaxially, narrowly cuneate or spatulate, 0.5–2 × 0.2–0.4 cm, thin, margins denticulate or with slightly rounded, widely spaced teeth, apex obtuse, surfaces glabrous.
1–3(–6)-flowered;
involucral bracts gibbous but not auriculate, ± equal.
1–7-flowered;
involucral bracts plane, ± equal.
nodding, thin, 2–9 mm, length 1–3 times bracts, flexuous.
arching at anthesis, capillary, 5–10 mm, length 2+ times bracts, flexuous.
homostylous;
calyx green or with purple stripes, cylindric, 4–6 mm;
corolla white or lavender, tube 6–8 mm, length 1–1.2 times calyx, eglandular, limb 6–8 mm diam., lobes 3–4 mm, apex slightly emarginate.
heterostylous;
calyx green or with purple stripes, campanulate, 2–4 mm;
corolla white, tube 2–4 mm, length 1 times calyx, eglandular, limb 5–8 mm diam., lobes 2.5–4 mm, apex emarginate.
narrowly cylindric, length 1.5–2 times calyx.
narrowly cylindric, length 1.5–2 times calyx.
without flanged edges, reticulate.
without flanged edges, reticulate.
= 36, ca. 40.
= 18.
Primula egaliksensis
Primula anvilensis
Primula egaliksensis is distinguished by its relatively few-flowered inflorescence of homostylous flowers; violet (forma violacea Fernald) and white corollas are equally common and sometimes occur together within populations. Early treatments of the arctic flora confused P. egaliksensis with other species, notably P. stricta. The names P. farinosa var. groenlandica Pax and P. sibirica in the sense of Hooker (not Jacquin) refer in part to P. egaliksensis.
Morphologic and genetic evidence (A. Guggisberg et al. 2006) indicates that Primula egaliksensis is a hybrid between sects. Aleuritia and Armerina, with probable parents being P. nutans and P. mistassinica or an ancestral form of that species. The rounded, petiolate leaves and narrow capsules ally it strongly to sect. Armerina, and it has traditionally been placed in that section. Primula egaliksensis has frequently been confused with P. nutans; it differs in its smaller, homostylous flowers and the absence of auriculate bracts.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Primula anvilensis is known only from the Bering Strait region of Alaska: on the Seward Peninsula, in the Noatak River drainage to the north, and to the south in upland and mountainous zones near the Bering Sea. It sometimes grows with P. borealis along the Alaskan coast; it is readily distinguished by its white flowers, plane involucral bracts, and more delicate aspect.
The name Primula parvifolia sensu Fernald (not Duby) applies to this species. M. L. Fernald (1928d) based his description of P. parvifolia on material collected in the Nome area. Those plants are clearly P. anvilensis. Later, W. W. Smith and H. R. Fletcher (1943) and E. Hultén (1968) correctly included P. parvifolia as a synonym of P. borealis; they did not realize that a second, undescribed species existed along the Bering Strait.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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