54 Charles E. Bcssey 



■Family ii. Cyanastraceae. Tropical African rhizomatous 

 plants. Cyanastnnn. (S3ilabus, 96.) 



Family 12. Philydraceae. Pistil 3-celled; stamen i; perianth 

 of two similar whods, each of two dissimilar leaves. Philydriiim. 

 (Pf. II, 4, 75-) _ - " 



Family 13. Xyridaceae. Rush-like plants with a i-celled or 

 incompletely 3-celled pistil ; stamens 3 ; perianth of two dissimilar 

 whorls each of three similar leaves. Xyris. (Pf. II, 4, 14.) 



Family 14. Mayaceae. Slender, creeping, moss-like plants with 

 i-celled pistil ; stamens 3 ; perianth of two dissimilar whorls, each 

 of three similar leaves. Mayaca. (Pf. II, 4, 16.) 



Family 15. Commelinaceae. Succulent herbs with 3- or 2- 

 celled pistil ; stamens 6 ; perianth of two dissimilar whorls of 

 three similar leaves. Commelina, Trade scantia. (Pf. II, 4, 60.) 



Family 16. Rapateaceae. Tall, sedge-like marsh herbs with 

 3-celled pistil ; stamens 6, in pairs ; perianth of tv^o dissimilar 

 whorls, each of three similar leaves. Rapatea. ( Pf. II, 4, 28.) 



Family 17. Juncaceae. Herbs with narrow leaves; pistil i- to 

 3-celled ; ovules solitary or many ; fruit a dry 3-valved pod. J un- 

 cus, Lnzula. (Pf. II, 5, i.) 



Family 18. Eriocaulonaceae. Rush-like herbs with flowers in 

 close heads ; perianth segments 6 or less, small ; pistil 3- or 2- 

 celled ; ovules orthotropous, pendulous. Eriocaidon. (Pf. II, 4, 

 21.) 



Family 19. Thtirniaceae. South American herbs, with small, 

 i-nerved leaves, and small axillary flowers. Thuniia. (vSyllabus, 



94-) 



Family 20. Flagellariaceae. Erect or climbing herbs with long 

 narrow leaves; pistil 3-celled; ovules solitary; fruit a i- to 2- 

 seeded berry. FlageUaria. (Pf. II, 4, i.) 



Order Arales. Compound pistil, mostly tricarpellary, supe- 

 rior ; ovules more than one ; flower-leaves reduced to scales or 

 entirely wanting. 



Family 21. Pandanaceae. Shrubs or trees with spirally 

 crowded, narrow, stiff leaves on the ends of the branches ; pistil 

 I-celled; ovules one or many. Pandamis. (Pf. II, i, 186.) 



328 



