Silene involucrata subsp. tenella

(Tolmatchew) Bocquet

Candollea 22: 24. 1967.

Common names: Taylor’s arctic campion
Basionym: Melandrium affine subsp. tenellum Tolmatchew Trudy Bot. Muz. 24: 258, fig. 4. 1932 (as Melandryum)
Synonyms: Gastrolychnis angustiflora subsp. tenella (Tolmatchew) Tolmatchew & Kozhanchikov Gastrolychnis involucrata subsp. tenella (Tolmatchew) Á. Löve & D. Löve Lychnis tayloriae B. L. Robinson Melandrium angustiflorum subsp. tenellum (Tolmatchew) Kozhanchikov Melandrium taimyrensis Tolmatchew Melandrium tayloriae (B. L. Robinson) Tolmatchew Melandrium tayloriae var. glabrum Hultén Melandrium tenellum (B. L. Robinson) Hultén Silene tayloriae (B. L. Robinson) Rydberg Wahlbergella tayloriae
Treatment appears in FNA Volume 5. Treatment on page 188. Mentioned on page 186, 196.

Plants short-lived; taproot slender, usually with fewer basal leaves. Flowering-stems branched distally, slender, (20–) 30–45 cm, usually with 3–5 pairs of leaves, internodes longer than leaves. Pedicels usually several times longer than calyx. Flowers 8–12 mm diam.; calyx campanulate, 8–10 (–12) mm in fruit. 2n = 48.


Phenology: Flowering summer.
Habitat: Gravelly and grassy places in the low arctic
Elevation: 0-1000 m

Distribution

V5 383-distribution-map.gif

Greenland, Man., N.W.T., Nunavut, Ont., Yukon, Alaska, Asia (Siberia)

Discussion

Silene ostenfeldii often appears to be inseparable from subsp. tenella except for its wingless seeds. It may be that the two subspecies of S. involucrata, together with S. ostenfeldii and S. hitchguirei, are components of a single variable species with diploid, tetraploid, and hexaploid populations.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

awned +  and not hooded +
fimbriate;dissected;2-lobed;acute;obtuse +
John K. Morton +
(Tolmatchew) Bocquet +
Melandrium affine subsp. tenellum +
cream colored +  and pale +
dentate +, emarginate to 2-fid +  and entire +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
spreading +, glabrous +  and pubescent +
spatulate +  and oblanceolate +
rarely +  and not succulent +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
lanceolate +
reduced +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
scarious +  and herbaceous +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
glabrous +  and pubescent +
campanulate +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
ovoid;globose +
conspicuous +
Taylor’s arctic campion +
dissected +  and variously--shaped +
dish--shaped +
expanded +
Greenland +, Man. +, N.W.T. +, Nunavut +, Ont. +, Yukon +, Alaska +  and Asia (Siberia) +
0-1000 m +
peripheral +
sessile +  and pedicellate +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 1.2 cm12 mm <br />0.012 m <br /> (?) +
conspicuous +
glandular-pubescent +
unisexual +  and bisexual +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
30 cm300 mm <br />0.3 m <br /> (45 cm450 mm <br />0.45 m <br />) +
stalked +  and simple +
Gravelly and grassy places in the low arctic +
purple-septate +
flexuous +
bracteate +, open +  and 1-3-flowered +
whorled +  and opposite +
connate +
conspicuous +
2-lobed;emarginate;obovate +
not differentiated +
purplish +  and green +
1 (?) +  and 4 (?) +
broadly triangular +  and lance-oblong or linear +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
purple-tinged +, pink +  and white +
fugacious +
Flowering summer. +
1mm;1.5mm +
papillate +  and tuberculate +
less reniform +  and angular +
2.8 cm28 mm <br />0.028 m <br /> (4 cm40 mm <br />0.04 m <br />) +
persistent +
1 cm10 mm <br />0.01 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
Illustrated +
rhizomatous +  and stoloniferous +
fewer +  and 10 +
branched +  and simple +
prostrate +, decumbent +  and sprawling +
ascending;erect +
[30 +, 4 +, 5 +  and 3 +
papillate +
distinct +
filiform +
0.15 cm1.5 mm <br />0.0015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Gastrolychnis angustiflora subsp. tenella +, Gastrolychnis involucrata subsp. tenella +, Lychnis tayloriae +, Melandrium angustiflorum subsp. tenellum +, Melandrium taimyrensis +, Melandrium tayloriae +, Melandrium tayloriae var. glabrum +, Melandrium tenellum +, Silene tayloriae +  and Wahlbergella tayloriae +
Silene involucrata subsp. tenella +
Silene involucrata +
subspecies +
divided +
10-30-veined +
purplish +, whitish +  and green +
inflated +, terete +, cylindric +  and campanulate urceolate or clavate +
membranous +
3 (?) +  and 5 (?) +
suffused with purple +
stoloniferous +, rhizomatous +  and taprooted +
subglabrous +  and pubescent +
0 +  and 1/2 +