Biological Papers. 71 



Order XXIV .—continued. 



Family 49. PontederiacE/K. Pickerel-weed family. 

 Genus 233. Heteranthera. Mud-plantain. 



234. Piaropus. Water-hyacinth. 



235. Pontederia, Pickerel-weed. 

 Order XXV. NYMPH.'EALES. The Water-lilies. 



Family 50. NYMPHyEACEvE. Water-lily family, 

 (o) Cabomboideae. Water-shield subfamily. 

 Genus 236. Cabomba. Water-shield. 

 237. Brasenia. Water-target. 

 (6) Nymphseoidete. Pond-lily subfamily. 

 Genus 238. Nymphaja. Pond-lily. 



239. Castalia. Wattr-lily. 



240. Victoria. Victoria. 



(c) Nelumboideas. Water-lotus subfamily. 

 Genus 241. Nelumbo. Water-lotus. 

 Subclass D. LILHFLOR^JS. Lily-floivered Monoeotyla. 

 Order XXVI. LILIALES. The Liliads. 



Family 51. Melanthace^. Bunch-flower family. 

 Genus 242. Colchieum. Saffron; meadow. 



243. Chamjelirum. Blazing-star. 



244. Zygadenus. Zygadene. 



245. Melanthium. Melanth. 



246. Uvularia. Bellwort. 

 Family 52. LiliacevE. Lily family. 



Genus 247. Hemerocallis. Day-lily. 

 2476. Funkia. Day-lily. 



248. Agapanthus. Love-flower. 



249. Allium. Wild-onion. 



250. Nothoscordum. Mild-onion. 



251. Androstephium. Elfin-crown. 



252. Lilium. Lily; wood-lily. 



253. Fritillaria. Fritillary. 



254. Erythronium, Adder-tongue. 



255. Tulipa. Tulip. 



256. Camassia. Wild-hyacinth. 



257. Hyacinthus. Hyacinth. 



258. Ornithogalum. Star-of-Bethlehem. 



259. Muscari. Grape-hyacinth. 



260. Tritoma. Tritoma; red-hot-poker. 



261. Sansevieria. Sansevieria. 



262. Dracaana. Dragon-tree. 



263. Yucca. Yucca; Spanish bayonet. 



264. Asparagus. Asparagus. 



265. Smilacina. Smilacina. 



266. Streptopus. Twistfoot. 



267. Polygonatum. Solomon-seal. 



268. Convallaria. Lily-of-the-valley. 



269. Trillium. Trillium. 

 Family 53. Amaryllidace>e. Amaryllis family. 



Genus 270. Hymenocallis. Hymenocallis. 



271. Narcissus. Narcissus, daffodil, etc. 



272. Zephyranthes. Atamasco lily. 



273. Amaryllis. Amaryllis, Jacobaea lily, 



274. Leucojum. Snowflake. 



275. Cooperia. Prairie rain-lily. 



276. Hypoxis. Star-grass. 



277. Galanthus. Snowdrop. 



278. Polianthes. Tuberose. 



279. Agave. Century-plant. 



