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49 
a. Basal leaves with terminal lobe di I or 2 times larger than the lateral 
WESTIN А рр w Water-cress. (Roripa palustris.) 
b. nt vem with terminal lobe аса times larger than the lateral 1 а 
a. Flowers about 1 in. broad, showy and spen clustered at top of eae 
leaves dark green, often shining above, not hairy. 
Yellow Daa ( Barbarea Barbarea.) 
р FUN not cnp ae in аи L PIA BR Дд 39. 
a. Upper leaves with bases clasping the stem. 
Ruta-baga. (Brassica campestris.) 
40. 
пос & 
К) 
2 
Ф 
У 
a 
T 
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Loi 
5 
8 
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N 
ods $-1 in. long, appressed to the stem. 
Hedge Mustard. (Sisymbrium officinale.) 
. Pods 2-4 in. long, spreading from the stem 
Tumble Mustard. Dri altissimum.) 
a. Plant only slightly hairy; mature graria 1-2 in 
> 
"E ( Brassica juncea.) 
Plant covered with stiff hairs; mature ene 1—3 in. lon 
Wild Mustard. cic arvensis.) 
c ANE ЭКЕНДЕ Sad dc, tig wis err Ee b he LEE EE 2 
= РАСУ ребра ао Ug M UU 
m 
Said g: Ai $i or lesa broad... o use ED 45. 
. Leaves Pond linear, arranged in whorls. 
Yellow Bedstraw. (Сайит verum.) 
b. Leaves not completety aa H3. oes e vC SI VI EVI EL Aw I. До: 46 
а. Fruit or ovary es ене winged, not flattened. 
Meadow Parsnip. (Thaspium barbinode.) 
b: Fit not winged, somewhat flattened: аи. 47 
а. All leaves ternately compound; fruit oblong. 
Golden Meadow Parsnip. (Zizia aurea.) 
b. Basal leaves round-heart-shaped; fruit oval...Alexanders. (Zizia cordata.) 
а. When broken plants exudes a yellow juice..Celandine. (Chelidonium majus.) 
b 
a 
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ine СОРУ as Id Шы: soo uL a esis DEM AA e e 49. 
or less. 
a. Perianth not differentiated into green calyx and colored corolla. 
Marsh Marigold. ше н palustris.) 
b. Perianth differentiated into а green calyx and colored corolla......... т. 
Ж PESE Y злу дууа i xo CoU. ER UNES ie aa Л CE eec vig alk gai 52. 
b. Pi 
a 
s ia Strawberry. (Waldsteinia fragarioides.) 
9: Leaves simple... es occ Frostweed. (Helianthemum canadense.) 
ily detached 
54. 
b. Calyx more or less united at the base, the lobes not readily detached. .бт. 
мо Bot. Garden 
1913 
