Difference between revisions of "Frasera albicaulis var. modocensis"

(H. St. John) N. H. Holmgren in A. Cronquist et al.

Intermount. Fl. 4: 22. 1984.

Common names: Modoc frasera
Endemic
Basionym: Swertia modocensis H. St. John Amer. Midl. Naturalist 26: 18. 1941
Treatment appears in FNA Volume 14.
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|genus=Frasera
 
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|species=Frasera albicaulis
 
|species=Frasera albicaulis

Latest revision as of 13:16, 24 November 2024

Stems densely puberulent. Leaf blades abaxially puberulent. Flowers: calyx lobes abaxially puberulent; corolla greenish white or pale to medium blue, generally with dark blue to purple spots; corona scales ovate to obovate or oblan­ceolate, (0.8–)1.5–2.5(–3.3) mm, margins entire or shal­lowly 2–3-lobed, rarely absent; rim of differentiated area on corolla surface fringed proximally, not fringed toward distal end. 2n = 52 (as Swertia albicaulis var. albicaulis).


Phenology: Flowering summer.
Habitat: Dry, brushy sites.
Elevation: 900–1900 m.

Discussion

Variety modocensis has sometimes been included in var. albicaulis, but var. albicaulis in the narrow sense has been characterized by N. H. Holmgren (1984b) as being more robust than var. modocensis, as well as differing in the corona-scale character noted in the descriptions here.

Selected References

None.

Lower Taxa

None.
James S. Pringle +
(H. St. John) N. H. Holmgren in A. Cronquist et al. +
Swertia modocensis +
Modoc frasera +
Calif. +, Nev. +  and Oreg. +
900–1900 m. +
Dry, brushy sites. +
Flowering summer. +
Intermount. Fl. +
Leucocraspedum albicaule +  and Swertia albicaulis +
Frasera albicaulis var. modocensis +
Frasera albicaulis +
variety +