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b Pianis not CN M o Sc e E реа. 20. 
a. Basal leaves round-ovate, heart-shaped at base. 
Golden Ragwort. (Senecio aureus.) 
b. Basal leaves tapering at the base into a winged petioles; оу. кй ид. м. д». 21 
a. Basal leaves obovate or oblanceolate, rounded at the apex. 
Squaw-weed. (Senecio obovatus.) 
b. Basal leaves usually oblong, rarely oblanceolate, not noticeably rounded 
t 
ut арен Dol cL ue o Sud. Balsam Groundsel. (Senecio Balsamitae.) 
B PNIS т ee Mat CC. 
Ө: ИЯСЕ: DUDAS quei ш ош: Кед ыл Е 29 
4. Leaves compound; leaflets 6—10, with tendrils. 
etchling. (Lathyrus ochroleucus.) 
PE TNE DOE CO IMAL следам booa i BRL уур. ы, 24 
a. Flowers in a terminal ы о е E QUA CE ee 25 
b. Flowers solitary on ао Чу visco OUS pr wu datae Eu ual E 2%; 
d: Leaves ente... ду уш Chaff-seed. (Schwalbea —€—— 
ho Leve bed or сй йон Lose e ei Л. у О у, Г Куу, 
a. Leaves pinnately parted or lobed.. те ар ( Pedicularis ridi: ) 
b. Leaves doubly compound, the leaflet 
gn ME. (Capnoides flavulum.) 
4. Leaves opposite, linear-lanceolate to ovate. 
w-wheat. (Melampyrum lineare.) 
b. Leaves alt e, broadly ovate to bats DI wa cvi Es 28. 
а. Plants hairy; s ырай ovate..... Hairy Yellow Violet. (Viola pubescens.) 
b. Plants not hairy; stipules lanceolate. 
Smooth Yellow Violet. (Viola scabriuscula.) 
а. Plant without green leaves or green stem 
wroot. (Conopholis american а ) 
Plants with green stem and green 1еауез............................ 30 
s Filante growing Sonting тае 54. oc kc. у уу, 31 
ЕИО I d es cid oes ОХОО А: 32 
а. Leaves rounded, 3 in. or more broad; flowers solitary o 
ellow Pond Lily. y ymphaea ddp. ) 
b. Leaves ovate, 5 in. or more long; flowers numerous on a s Spike. 
Golden Club. (Orontium aquaticum.) 
а. Perianth 6-parted, not differentiated into green calyx and colored corolla; 
ОНЕ Or UN OTM C PUO Esser DALLO 
* Paste nof СИРИ qd [OC oe oce a pros EE e 
а. Flowers solitary on the flowering stalk; leaves usually mottled. 
Yellow sop клы. (Erythronium americanum. м 
5 Paste t СОИ de 1 o a 
а. Leaves basal; flowers in umbels.. . Yellow Clintonia. (Clintonia кык › 
b. Leaves not basal; flowers КОЛЕСИКО Суу шлу р. 
а. Leaves with the bases surrounding the stem. 
: Perfoliate Bellwort. ( Uvularia perfoliata.) 
b. Leaves sessile, not as ina.............. Bellwort. (Uvularia sessilifolia.) 
a. Sepals 4; petals 4; батине: ИО у 37 
