80 THE SPECIES OF HIPPEASTRUM. 



ovary generally short ; throat naked, or variously appendiculate or 

 fimbriate ; segments permanently ascending and imbricated, oblong 

 or oblanceolate, or obovate-oblong, sub-equal, or the lowest inner 

 one narrower than the rest. Stamens inserted at the throat of 

 the tube ; filaments filiform, more or less decidedly declinate, 

 usually shorter than the perianth- segments ; anthers linear- oblong, 

 versatile. Ovary oblong, three-celled ; ovules many in a cell, 

 horizontal, superposed; style filiform, declinate along with the 

 stamens ; stigma capitate, or shortly trifid. Fruit a loculicidal 

 capsule, with numerous black discoid seeds. — Acaulescent herbs. 

 Bulbs with many brown membranous tunics. Leaves few (generally 

 two to four), of short duration, fleshy, linear, or lorate. Flowers 

 one to six in an umbel, the spathe of which is tubular in the lower 

 half in the first section, slit down to the base in all the others. 



Key to the Sections and Species. 



Section I. Zephyrites (Herb.) Flowers sohtaiy, suberect ; spathe 

 entire and tubular in the lower half; perianth an open funnel, 

 with a short tube ; stigma trifid ; leaves narrow hnear (one- 

 eighth to a quarter of an inch broad). 



* Grandijiori (Perianth-limb two to three inches long.) 



1. H. sylvaticiim. 2. H. versicolor. 3. H. tuhispathum. 



4. H. andicolum. 5. H. concolor. 



** Parvijiori (Perianth-limb one and a half to two inches long.) 



6. H. gracilifolium. 7. H. cearense. 8. H. franciscanum. 



9. H. texanum. 10. H. Andersoni. 



Section II. Habranthus [Herb.) Flowers generally two to six in an 

 umbel, rarely reduced to one ; spathe slit do"^Ti to the base ; 

 perianth (except in H. phycelloides) an open funnel, with a 

 short tube ; stigma trifid ; leaves linear (one-sixth to a quarter 

 of an inch broad). 



* Flowers never more than one or ttoo. 

 11. H. chileme. 12. H. roseuni. 13. H. lineatum. 



** Umbel tioo to six-fioxoered. Perianth an open funnel. 

 14. H. advenum. 15. H. bijidnm. 16. H. Bagnoldi. 

 17. H. montanum. 18. H. Berteroanum. 19. H. Jamesoni. 



*** Umbel two to six-Jioivcred. Perianth a narrow funnel. 

 20. H. phycelloides. 



Section III. Phycella [Lindl.) Flowers several in an umbel; spathe 

 slit down to the base; perianth a naiTow funnel, usually more 

 or less distinctly toothed at the throat ; segments oblanceolate ; 

 stigma exserted, capitate ; leaves linear (a quarter to half an 

 mch broad). 



21. H. bicolor, 22. H. Herbertianum. 



