Biological Papers. 121 



Family 55. Amaryllidace^. Amaryllis Family. 

 Scapose or leafy-stemmed perennial herbs, from bulbs or rootstocks, 

 and with soft, linear laminodia, rarely broadly expanded toward the distal 

 end. and with rounded caringe. Flowers perfect, nearly actinomorphous. 

 Perianth six-lobed, the segments united below into a tube coherent with 

 the ovulary. Stamens six. on the bases of the perianth-segments, often 

 declinate; anthers versatile or basifixed, introrse, bisporangiate, longi- 

 tudinally dehiscent. Ovulary inferior, trilocular; style filiform; stigmas 

 three; ovules numerous, anatropous; fruit capsular; seeds black. 



754. Hymenocallis occidentalis Kth. Hymenocallis. Marshy banks of 

 streams, S. E. K.; not common. Aug. 



755. Narcissus jonquilla L. Jonquil. Gardens; frequent. 



756. Narcissus pseudo-narcissus L, Daffodil; Trumpet-daffodil. Com- 

 mon in residences. 



757. Narcissus tazetta L. Polyanthus Narcissus. Common in house s. 



758. Narcissus poeticus L. Poet's Narcissus. Houses and gardens. 



759. Zephyranthes atamasco Herb. Atamasco Lily. Houses, frequent 



760. Zephyranthes rosea Lindley. Fairy Lily. Frequent in windows. 

 76L Sprekelia formosissima Herb. Jacobea Lily. Houses, occasional. 



762. Amaryllis lateritia Diet. Amaryllis. Many species of amaryllis 

 are raised in homes, sometimes in gardens. 



763. Leucojum vernum L. Spring Snowflake. A favorite in gardens. 



764. Leucojum autumnale L. Fall Snowflake. Occasional in gardens. 



765. Cooperia drummondii Herb. Prairie-lily; Rain-lily. Prairies S. E. 

 K ; occasional. May. (AS) 



766. Hypoxis hirsuta Cov. Hairy Star-grass. Dry soil, E. K.; not 

 common. June. (A) 



767. Galanthus nivalis L. Snowdrop. Frequent in gardens. March- 

 April. 



768. Polianthes tuberosa L. Tuberose. Gardens; common. Summer. 



769. Agave americana L Centuiy-plant. Common in residences and 

 on lawns in summer. Several other species of Agave in house culture. 



Family 56. IridacetE. Iris Family. 

 Herbs, from perennial rootstocks or bulbs, having linear two-ranked 

 equitant laminodia, so folded as to appear laterally compressed, but with- 

 out a deep keel. Flowers clustered, perfect, actinomorphous or zygomor- 

 phous. Perianth of six segments, in two series, the sepals and petals often 

 markedly unlike, yet both showy, and convolute in prefloration. Stamens 

 three, on the outer series of perianth-segments; anthers bisporangiate, ex- 

 trorse; staminodia three, on the inner series of perianth segments. Ovulary 

 inferior, trilocular; ovules numerous in each loculus, anatropous; style 

 three-cleft, its branches flat, spreading, and petal-like, sometimes divided. 

 Capsule three-valved, loculicidally dehiscent, or three-angled or three-lobed 

 and many-seeded, rarely a berry after removal of the dry capsule. 



770. Iris versicolor L. Large Blue Flag. Thickets, Leavenworth and 

 Atchison counties; not common. May. Laminodia broad. 



77L Iris germanica L. Iris; (Fleur-de-lis). Gardens; common in many 

 varieties and horticultural subspecies. 



772. Iris pumila L. Dwarf Garden Iris. Borders in gardens; common. 

 April. 



