Yucca 



LILIACEAE 



Tricyrtis 



AA. 



Anthers basifixed. 



Perianth segments with a nectar-bearing pit 



or spot 9 - Fritillaria 



Perianth segments without nectar-bearing pit 10. Tulipa 

 II. Lvs. basal: fls. borne on a leafless scape. 



Perianth segments distinct to the base 11. Scilla 



Perianth segments united at the base 12. Hyacinthus 



CC. Fr. a berry. 



J. Lvs., at least some of them, broad. 

 K. Plants with lfy. stems. 



Stem lvs. whorled 13. Paris 



Stem lvs. alternate 14. Disporum 



KK. Plants acaulescent. 



Lvs. broader and coarse (4-7 cm. broad) 15. Rohdea 



Lvs. narrower (1-2 cm. broad), soft 16. Reineckia 



JJ. Lvs. linear, grass-like or rush-like. 



Infl. a spreading panicle 17. Dianella 



Inn. a spike-like raceme. 



Ovary superior: stamens with blunt anthers 18. Liriope 



Ovary partly or wholly infeiior: anthers pointed. 19. Ophiopogon 

 BB. Perianth lobed or shortly cleft. 



Stem not leafy, except at the base 20. Aletris 



Stem leafy, except at the base 21 . Polygonatum 



Fls. dioecious. 



Lvs. flat: fls. in umbels: mostly woody plants 22. Smilax 



Lvs. scale-like: foliage represented by flattened needle-like brs. 



borne in the axils of small scales 23. Asparagus 



1. Yucca Linn. Spanish Bayonet UMM (Ssu Lan Shu) 

 Nearly stemless perennials, shrubs or small trees with long stiff sword-shaped sharply 

 pointed lvs.: infl. a large terminal panicle of showy usually white perfect fls.; perianth 

 cup- or saucer-shaped, usually pendulous; segments distinct or nearly so; stamens 

 shorter than the perianth: fr. an ovoid to oblong capsule. 30 species, in North and 

 Central America; one cultivated in China. (The Carib name for the Cassava (Manihot), 

 erroneously applied by Gerarde to this plant.) 



1. Yucca filamentosa Linn. Adam's Needle UM (Ssu Lan; Silk Orchid) (B.M.240). 

 Shrub, 1-2 m. high; fls. white, VI. Eastern North America, widely planted; 

 locally in An., Ku. Planted, ornamental. Fig. 473. 



2. Tricyrtis Wall. Toad-lily ffc/^M (Yu Tien Ts'ao Shu) 

 Perennial herbs from short rhizomes or from fibrous roots: stems simple, with 

 broad nearly sessile or clasping lvs.: fls. terminal or axillary, not lily-like: perianth 

 brown-spotted inside; the three outer segments saccate at the base; anthers extrorse; 

 style 2-parted: capsule septicidal. 8 species, in eastern Asia; 4 in China. (Greek 

 tri, three, and cyrto, curved, referring to the nectar sacs on the outer perianth seg- 

 ments. Fig. 474. 



1. Tricyrtis macropoda Miq. M#: (Yu Tien Ts'ao; Oil-spot Herb) (Mak.F.754). 

 Erect, 8-10 dm. high; fls. purple-mottled, VI-VIII; fr. IX-X. Eastern Asia; locally 

 in An., Che., Ki., Ku. Woodland. 



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