Difference between revisions of "Chlorogalum"
Enum. Pl. 4: 681. 1843.
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Latest revision as of 21:16, 5 November 2020
Herbs, perennial, from tunicate bulbs. Leaves basal; blade linear, reduced to scarious bracts in inflorescence. Inflorescences paniculate. Flowers scattered at intervals along branches, 1–several per node, each subtended by small bract; perianth white, purple, or pinkish; tepals 6, distinct, linear to oblong, with nectaries at base, persisting in fruit and twisting together above capsule; stamens 6, inserted on bases of tepals; anthers versatile; style slightly 3-lobed at apex; pedicel articulate. Fruits capsular, 3-valved, dehiscence loculicidal. Seeds 1 or 2 per locule.
Distribution
w North America, mainly Calif.
Discussion
Species 5 (5 in the flora).
Based on floral characters, chromosome numbers, and karyotypes, Chlorogalum probably is closely related to Camassia, from which it differs primarily in the number of ovules per locule (1 or 2 in Chlorogalum, more than 2 in Camassia).
Selected References
Lower Taxa
Key
| 1 | Flowers diurnal. | > 2 |
| 1 | Flowers vespertine. | > 3 |
| 2 | Tepals white or pinkish; flowers or buds 2 or more per axil. | Chlorogalum parviflorum |
| 2 | Tepals deep blue to purple; flowers and buds occurring singly along inflorescence axis. | Chlorogalum purpureum |
| 3 | Leaves 2–5 mm wide, margins not strongly undulate. | Chlorogalum angustifolium |
| 3 | Leaves 6–25 mm wide, margins strongly undulate. | > 4 |
| 4 | Pedicel 5–35 mm, ca. equal to or exceeding perianth. | Chlorogalum pomeridianum |
| 4 | Pedicel 2–5 mm, much shorter than perianth. | Chlorogalum grandiflorum |