Hennediella heimii var. arctica
Bull. Buffalo Soc. Nat. Sci. 32: 248. 1993,.
Basionym: Pottia heimii var. arctica Lindberg Öfvers. Kongl. Vetensk.-Akad. Förh. 23: 551. 1867
Synonyms: Desmatodon heimii var. arcticus (Lindberg) H. A. Crum Gymnostomum obtusifolium Pottia heimii var. obtusifolia (R. Br. bis) I. Hagen
Treatment appears in FNA Volume 27. Treatment on page 636.
Revision as of 07:13, 30 July 2020 by imported>Volume Importer
Leaves broadly ovate to broadly elliptic, concave and often cucullate, apex usually obtuse, margins usually entire; costa often ending before the apex.
Phenology: Capsules mature late summer (Aug).
Habitat: Exposed soil, silt
Elevation: low elevations
Distribution
Greenland, N.W.T., Nunavut, Ont., Alaska, Europe, n Asia
Discussion
Variety arctica is a somewhat poorly circumscribed taxon largely restricted to the Arctic. It is generally much smaller than var. heimii, with leaves commonly 0.5–0.8 mm.
Selected References
None.
Lower Taxa
None.
... more about "Hennediella heimii var. arctica"
absent +
differentiated +
quadrate +
absent +
revoluble +
deciduous +
obtuse +
absent +
differentiated +
usually slightly wider +
trabeculate +
absent +
usually ovate;oblong +
not differentiated +
obovoid +
1-stratose +
papillose +
stegocarpous +
specialized +
absent +
bulging +
thickened +
thin;evenly thickened +
brownish +
elongate +
absent +
2-stratose +
stacked +
9mm;16mm +
papillose +
plane +
multistratose +
shortrectangular;quadrate;hexagonal +
large +
spiculose +
filiform +
differentiated +
multicellular +
absent +
common +
asexual +
developed +
absent +
absent +
large +
Present +
contorted +
appressed +
spreading +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
ligulate +
tubulose +
stiff +
bordered +
recurved +
plane +
involute +
denticulate +
absent +
conic;rostrate +
photosynthetic +
absent +
2-fid +
sheathing +
long-oval +
usually larger +
absent +
twisted +
absent +
differentiated +
bordered +
sheathing +
ovate +
Bull. Buffalo Soc. Nat. Sci. +
straight +
oblique +
2;4 +
not absent +
twisted +
elongate +
distal +
larger +
absent +
ligulate +
spreading;incurved;appressed +
ovate +
branching +
sheathing +
Hennediella heimii var. arctica +
Hennediella heimii +
variety +
wide-mouthed +
ovate;cylindric +
thin +
spathulate +
reddish-brown;green +
occasionally smaller than the perichaetiate +