CLASS Il. ANGIOSPERM4. 171 
Arisaema dracontium (L.) Schott. Dragon-root. Less abund- 
ant, in alluvial woods. Decorah (Cratty). 
Spathyema foetida. (L.) Raf. (Symplocarpus foetidus 
Salisb.) Skunk Cabbage. Common in shaded bogs. Decorah 
(Cratty), Bluffton, ete. 
Acorus calamus L. Calamus. Locally common in swamps and 
bogs. Decorah (Cratty), Hesper, said to be introduced. 
Family 2. Lemnacee. Duckweeds. 
Spirodela polyrrhiza (L.) Schleid. Greater Duckweed. Float- 
ing on still water, abundant locally. Decorah (Cratty). 
Lemna trisulca L. Duckweed. Not rare, in still water. Decorah 
(Cratty). : 
Order 5. Xyridales. 
Family 1. Commelinacee, 
Tradescantia bracteata Small. (T. virginica L., in part.) 
Long-bracted Spiderwort. Common in sandy soil. Decorah 
(Savage) ; Ft. Atkinson. 
‘Tradescantia reflexa Raf. (T. virginica L., in part.) Reflexed 
Spiderwort. Common, in sandy soil. Calmar. 
Order 6. Liliales. 
Family 1. Juncacee, Rushes. 
Juncus tenuis Willd. Slender Rush. In hard soils, common. 
Calmar; Decorah (Goddard). 
Juncus vaseyt Engelm. Vasey’s Rush. Not rare. In moist 
open places. Ft. Atkinson. | 
Juncus nodosus L. Knotted Rush. Common along eipes of 
ponds and in open boggy places. Ft. Atkinson. 
Family 2. Melanthacee. 
" Zygadenus elegans Pursh. Glaucous ependcnue: Not com- 
mon. Decorah (Goddard). 
Uvularia grandiflora J. . Smith. Common Bell-wort.. Com- 
mon in rich woods. Hesper, Ft. Atkinson; Decorah (Goddard). 
Uvularia sessilifolia L. (Oakesia sessilifolia Wats.) Sessile- 
leaved Bell-wort. Reported by Fitzpatrick. 
Family 3. Liliacee. Lilies. 
Allium tricoccum Ait. Wild Leek. Tecally: common in rich 
woods. Hesper. 
Allium cernuum Roth. Nodding Wild Onion. On shaded 
banks, etc. Not rare. Hesper; Decorah (Arthur). i 
