Primula anvilensis

S. Kelso

Syst. Bot. 12: 10, fig. 1. 1987 ,.

Common names: Boreal primrose
Endemic
Treatment appears in FNA Volume 8. Treatment on page 291. Mentioned on page 292, 294.

Plants 2–12.5 cm, herbaceous; rhizomes thin, relatively short; rosettes not clumped; vegetative parts efarinose. Leaves 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. Inflorescences 1–7-flowered; involucral-bracts plane, ± equal. Pedicels arching at anthesis, capillary, 5–10 mm, length 2+ times bracts, flexuous. Flowers 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. Capsules narrowly cylindric, length 1.5–2 times calyx. Seeds without flanged edges, reticulate. 2n = 18.


Phenology: Flowering summer.
Habitat: Frost-patterned ground, late snowbeds, stream banks and gravel bars on calcareous substrates
Elevation: 0-500 m

Discussion

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.

Selected References

None.

Lower Taxa

None.

No values specified."-2timescalyx" is not declared as a valid unit of measurement for this property."+timesbracts" is not declared as a valid unit of measurement for this property."thin" is not a number."timescalyx" is not declared as a valid unit of measurement for this property.

... more about "Primula anvilensis"
Sylvia Kelso +
S. Kelso +
narrowed +, rounded +  and tapered +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
crenulate +  and denticulate +
spatulate;cuneate +
1 +  and 5 +
with purple stripes;green +
puberulent +, pilose +  and glabrous +
campanulate +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
cylindric +
Boreal primrose +
campanulate +
flanged +
0-500 m +
heterostylous +
operculate +  and capsular +
Frost-patterned ground, late snowbeds, stream banks and gravel bars on calcareous substrates +
nectariferous +
solitary +, involucrate +  and 2-25+-flowered +
not aromatic +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not reflexed +
with slightly rounded , widely spaced teeth +  and denticulate +
tenuinucellate +  and bitegmic +
capillary +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
yellow;white;yellow;white;violet;rose;pink;magenta;lavender +
Flowering summer. +
vesiculate +  and reticulate +
4-angled +, oblong +  and ovoid +
connate +  and distinct +
inflated +
Primula anvilensis +
species +
rounded +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
perennial +  and annual +
stoloniferous +  and rhizomatous +
11 +, [10 +, 9 +  and [8 +