IOWA ACADEMY OF SCIENCE 
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239. Lilium superbum L. Turk’s Cap Lily. Rather scarce. 
240. Lilium canadense L. Wild Yellow Lily. Common in open places. 
ERYTHRONIUM L. 
241. Erythronium albidum Nutt. Dog-tooth Violet. Abundant in 
woodlands. 
ASPARAGUS (Tourn) L. 
242. Asparagus officinalis L. Common Asparagus. Occasional as an 
escape. 
SMILACINA D’esf. 
243. Smilacina racemosa (L.) Desf. Racemose False Solomon’s Seal. 
Common. 
244. Smilacina siellata (L.) Desf. Stellate False Solomon’s Seal. 
Common. 
MAIANTHEMUM (Webber) Wigg. 
245. Maianthemum canadense Desf. False Lily-of-the- Valley. Scarce 
in rich woods. 
POLYGONATUM (Tourn) Hill. 
246. Polygonatum commutatum (R. & S.) Dietr. Smooth Solomon’s 
Seal. Common. 
TRILLIUM L. 
247. Trillium nivale Riddell. Dwarf Trillium, Wake Robin. Common 
in woodlands. 
248. Trillium cernuum L. Nodding Wake Robin. Scarce in deep 
woods— State Quarries. 
249. Trillium sessile L. Sessile Flowered Wake Robin. Rare along 
Old Man’s Creek. 
SMILAX (Tourn) L. 
250. Smilax herbacea L. Carrion Flower. Plenty in woods. 
251. Smilax ecirrhata (Engelm) Wats. Upright Smilax. Common. 
252. Smilax hispida Muhl. Hispid Green Brier. Abundant in thickets. 
253. Smilax pseudo-china L. Long Stalked Green Brier. Scarce, El- 
mira. 
