70 Kansas Academy of Science. 



Order XVIII. JUNCALES. The True Rushes, 



Family 37. Juncace^. Rush family. 

 Genus 199. Juncus. Rush. 



200. Luzula. Wood-rush. 

 "^ubclasa B. SPADICIFLOR^E. Spadix-Jlowered monocotyls. 



O.tDER XIX. ARALES. The Arads. 



Family 3?. Lemnace^e. Duckweed family. 

 Genus 201. WolfRa, Frog-spit. 



202. Lemna. Duckweed. 



203. Spirodela. Great duckweed. 

 Family 39. Arace^. Arum family. 



Genus 204. Acorus. Calamus. 



295. ArisEema. Indian turnip. 



206. Amorphophallus. Giant arum. 



207. Caladium. Caladium. 



208. Calla. Calla. 

 Order XX. PANDANALES. The Cattail Reeds. 



Family 40. Typhacea;. Cattail family. 



Genus 209. Typha. Cattail (flag). 

 Family 41. Sparganiace^. Bur-reed family. 



Genus 210. Sparganium. Bur-reed. 

 Family 42. Pandanace^e. Screw-pine family. 



Genus 211. Pandanus. Pandanus. 

 Order XX6. PALMALES. The Palms. 



Family 426. PhcenicacevE. Date-palm family. 



Genus 212. Phoenix. Date palm. 

 Family 42c. Cocace^. Coconut family. 



Genus 213. Cocos. Coconut palm. 



214. Areca. Betelnut palm. 



215. Kentia. Feather palm. 

 Family 42d. Sabatace^. Fan-palm family. 



Genus 216. Livistona. Bourbon palm. 

 Order XXI. NAIADALES. The Pondweeds. 



Family 43. Zannichelliace;e. Pondweed family. 

 Genus 217. Potamogeton. Pondweed. 



218. Ruppia. Ditch-grass. 



219. Zannichellia. Horned pondweed. 

 Family 44. Naiadace^. Water-njrmph family. 



Genus 220. Naias. Water-nymph. 



Class X.* Petalifbr^. Monocotyls with Showy Perianth. 



Subclass C. ALISMA3FL0RAS. Alisma-flowered Monocotyls. 

 Order XXII. HYDRALES. The Waterworts. 



Family 45. Vallisneriace^e. Tape-grass family. 

 Genus 221. Philotria. Ditch-moss. 



222. Vallisneria. Tape-grass. 



223. Limnobium. Frog's-bit. 

 Order XXIII. ALISMALES. The Alismads. 



Family 46. ScHEUCHZERiACEiE. Arrow-grass family. 



Genus 224. Triglochin. Arrow-grass. 



225. Scheuchzeria. Arrow-grass. 

 Family 47. AlismacE/E. Arrow-head family. 



Genus 226. Alisma. Alisma; round-head. 



227. Helianthium. Spear-head. 



228. Echinodorus. Bur-head. 



229. Lophotocarpus. Lance-head. 



230. Sagittaria. Arrow-head. 

 Order XXIV. COMMELINALES. The Dayflowers. 



Family 48. Commelinace^. Spiderwort family. 

 Genus 231. Tradescantia. Spiderwort. 

 232. Commelina, Dayflower. 



