. The Canadian field-naturalist. 568 The Canadian Field-Naturalist Vol. 103 r- 1 mm S. MARINA var. MARINA var. LEIOSPERMA S. CANADENSIS var. OCCIDENTALIS S. DIANDRA LO. wing Figure 2. Comparison of seeds of Spergularia taxa in Saskatchewan. Occurring farther south along the Pacific coast, from Vancouver Island to California, is S. canadensis var. occidentalis, with glandular- pubescent sepals, pedicels and upper stems, and glandular-ciliate leaves (see Figure 3). We have assigned the following east-central Saskatchewan population from the Nitenai River to S. canadensis var. occidentalis becaus
. The Canadian field-naturalist. 568 The Canadian Field-Naturalist Vol. 103 r- 1 mm S. MARINA var. MARINA var. LEIOSPERMA S. CANADENSIS var. OCCIDENTALIS S. DIANDRA LO. wing Figure 2. Comparison of seeds of Spergularia taxa in Saskatchewan. Occurring farther south along the Pacific coast, from Vancouver Island to California, is S. canadensis var. occidentalis, with glandular- pubescent sepals, pedicels and upper stems, and glandular-ciliate leaves (see Figure 3). We have assigned the following east-central Saskatchewan population from the Nitenai River to S. canadensis var. occidentalis because it appears identifiable only as this taxon. The plants of this population are localized near open pool edges at raised NaCl springs, within the extensive Nitenai River saline marshes, in the Carrot River Valley, at northern base of Pasquia Hills, bordering the south shore of Nitenai River, ca. 80 km N of Hudson Bay Jet., S22-T53-R2 W2; 53°35'25" N, 102° 13'W (17 July 1984, V. L. Harms, D. F. Hooper, & L. Baker 32,767, SASK; 1 Aug. 1987, G. F. Ledingham et al. 10180, USAS, SASK) (see Figures 1 and 3). The Nitenai River saline marshes appear quite well removed from human-disturbances, including no known intro- duced weeds, so this Spergularia population would certainly appear indigenous. This single Nitenai River population is relatively well sampled, with about 35 individual plant specimens included in the two cited collections which were carefully studied and recorded. The plants of this population may be characterized in habit as ascending to erect, slender annuals, largely unbranched below and sparingly so above, with stems 4-11 (X = 7) cm long. The leaves are not fascicled, those below the inflorescence 9-25 (X = 15) mm long and mm wide, with either obtuse or acute, thin-foliate, non-mucronatc apices. Their stipules are mostly about (X = ) mm long and about as wide. The inflorescences are rather open and leafy, with middle floral bracts mostly o
Size: 2004px × 1246px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
