Difference between revisions of "Nemastylis geminiflora"
Trans. Amer. Philos. Soc., n. s., 5: 157. 1837.
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Latest revision as of 19:18, 11 January 2021
Plants slender, 12–40 cm. Bulbs 20–30 mm diam. Stems sturdy, usually branched, mainly from base. Leaves usually 3; blade linear to ensiform, usually exceeding rhipidia, 4–20 mm wide. Rhipidia usually 2-flowered; outer spathe 20–35 mm, inner 30–55 mm, apex dry. Tepals blue, white in center, white zone sometimes edged with dark blue, ovate-lanceolate, 2.5–3 cm; filaments distinct or connate basally, ca. 4 mm; anthers 11–15 mm; ovary conic, 4–5 mm; style branching above base of anthers; branches 5–6 mm. Capsules ovoid, truncate, (10–)14–20 mm. Seeds angular. 2n = 56.
Phenology: Flowering Apr–Jun.
Habitat: Woodlands, prairies, and pastures
Distribution
Ala., Ark., Kans., La., Miss., Mo., Okla., Tex.
Discussion
The flowers of Nemastylis geminiflora open midmorning and fade before sundown.
There seems to be no merit in recognizing Nemastylis texana (E. Whitehouse 1936) for plants from southern Texas, said to have steel-blue flowers, more frequently found in oak woodlands than in prairies. Reports in the literature of N. geminiflora from Tennessee appear to be incorrect, possibly based on an early record from “E. Tennessee” (Dr. Eight s.n., NY). Ixia acuta W. P. C. Barton 1822 (not Lichtenstein ex Roemer & Schultes 1817) is an illegitimate name that pertains here.
Selected References
None.