An Illustrated Flora of the Northern United States, Canada and the British Possessions/Liliaceae
Family 22.
Liliaceae
Adans.
Fam. Pl. 42.
1763.
Lily Family.
Scapose or leafy-stemmed herbs from bulbs or corms, or rarely with rootstocks or a woody caudex (Yucca), the leaves various. Flowers solitary or clustered, regular, mostly perfect. Perianth parted into 6 distinct or nearly distinct segments, or these more or less united into a tube, inferior, or partly superior (Aletris). Stamens 6, hypogynous or borne on the perianth or at the bases of its segments; anthers 2-celled, mostly introrse, sometimes extrorse. Ovary 3-celled; ovules few or numerous in each cavity, anatropous or amphitropous; styles united; stigma 3-lobed or Fruit a loculicidal capsule (septicidal in Calochortus), or in Yucca sometimes fleshy and indehiscent. Embryo in copious endosperm.
About 125 genera and 1300 species, widely distributed.
| ||||||||||||
• | Plants bulbous, or with rootstocks, or fibrous-fleshy roots. | |||||||||||
• | Ovary superior, not adnate to the perianth. | |||||||||||
• | Roots fibrous-fleshy; scape tall; flowers orange or yellow. | 1. | Hemerocallis. | |||||||||
• | Low fleshy herb with a short rootstock; flowers white. | 2. | Leucocrinum. | |||||||||
• | Plants with bulbs or corms. | |||||||||||
• | Flowers umbelled. | |||||||||||
• | Perianth 6-parted. | |||||||||||
• | Odor characteristically onion-like; ovules 1 or 2 in each cavity. | 3. | Allium. | |||||||||
• | Odor not onion-like; ovules several in each cavity. | 4. | Nothoscordum. | |||||||||
• | Perianth funnelform, the tube about as long as the lobes. | 5. | Androstephium. | |||||||||
• | Flowers solitary, racemed, corymbed or panicled. | |||||||||||
• | Anthers not introrse. | |||||||||||
• | Perianth-segments all alike or nearly so; capsule loculicidal. | |||||||||||
• | Anthers versatile; tall herbs. | 6. | Lilium. | |||||||||
• | Anthers not versatile; low herbs. | |||||||||||
• | Stem leafy. | |||||||||||
• | Flowers nodding; perianth-segments with a nectary at the base. | 7. | Fritillaria. | |||||||||
• | Flowers erect; perianth-segments without a nectary. | 8. | Tulipa. | |||||||||
• | Leaves only 2, appearing basal; flowers bractless. | 9. | Erythroniitm. | |||||||||
• | Outer segments narrower than the inner; capsule septicidal. | 10. | Calochortus. | |||||||||
• | Anthers introrse. | |||||||||||
• | Perianth of 6 separate segments. | |||||||||||
• | Filaments filiform. | 11. | Quamasia. | |||||||||
• | Filaments flattened. | 12. | Ornithogalum. | |||||||||
• | Perianth globose, oblong or urn-shaped. | 13. | Muscari. | |||||||||
• | Ovary half inferior; roots fibrous; flowers racemed. | 14. | Aletris. | |||||||||
• | Stem a woody caudex; leaves rigid, mostly bearing marginal fibers. | 15. | Yucca. | |||||||||
|