LEMNACEAE (DUCKWEED FAMILY) 



6 ANTHtTRIUM TAIL-FLOWER. (A. scherzerianum*) 



7 SPATHYEMA SKUNK CABBAGE. (S. foetida.) 



8 OR6NTIUM GOLDEN CLUB. (0. aqudticum.) 



9 ACORUS SWEET FLAG. (A. cdlamus.) 



2 LEMNACEAE. Duckweed Family. 



1 SPIRODELA LARGE DUCKWEED. (S. polyrhiza.) 



2 LfiMNA SMALL DUCKWEED. (L. minor.) 



3 W6LFFIA WOLFFIA. (W. columbiana.) 



6 XYRIDALES. Yellow-eyed Grass Order. 



i XYRIDACEAE. Yellow-eyed Grass Family. 

 i XYRIS YELLOW-EYED GRASS. (X. caroliniana.) 



2 ERIOCAULACEAE. Pipewort Family. 

 i ERIOCAtJLON. 

 i a Leaves 1-3 in. long; flowering stalk y-angled 



PIPEWORT. (E. septangular?.) 

 b Leaves 4-20 in. long; flowering stalk 10-16 in. long 



TEN- ANGLED PIPEWORT. (E. decangulare.) 



3 BROMEHACEAE. Pine-apple Family. 



1 TILLANDSIA FLORIDA Moss. (T. usneoUes*) 



2 ANANAS PINE-APPLE. (A. satlvus*) 



4 COMMELINACEAE. Spiderwort Family. 

 i TRADESCANTIA. 



1 a Leaves linear, 6-15 in. long. .SPIDER WORT. (T. virginiana.) 

 b Leaves ovate, 1-3 in. long 



GREEN WANDERING JEW. (T. fluminensis.*) 



2 ZEBRlNA WANDERING JEW. (Z. pendula*) 



3 COMMELlNA DAY FLOWER. (C. communu*) 



5 PONTEDERIACEAE. Pickerel-weed Family. 



i PONTEDfeRIA PICKEREL-WEED. (P. cordatu.) 



7 LILIALES. Lily Order, 

 i JUNCACEAE. Rush Family. 

 i JUNCUS. 



1 a Flower clusters appearing lateral on the stem 



COMMON RUSH. (J. effusus.) 

 b Flower clusters appearing terminal on the stem 2 



2 a Flowers in heads arranged in a panicle ; leaves with 



partitions, jointed 3 



b Flowers not in heads; leaves not with partitions, not 



jointed 5 



3 a Heads globose; plant comparatively slender 



SCIRPUS-LIKE RUSH. (J. scirpoldes.) 

 b Heads top-shaped or hemispheric 4 



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