24 
Flowers with the greenish-white segments toothed near~ 
q their base; leaves small and narrow. J 
| The'sium linophyllum. 
~Segments of the flower not toothed. 
Leaves with w hite, membranous stipules at the base of-~ 
( the stalk, which often surround the stem like a 
| tube. Polygonum.” 
~Leaves without any stipules. 
Leaves hairy, often with 3 nerves near the base of WS 
( the leaf. } . om SN 
| Parieta'ria officinalis. Pe/litory. 
Leaves not hairy. CHENOPODIA CE. 
Sect. H. CALYX ABSENT, OR OF 2 SEG- 
MENTS ONLY, OR PETAL-LIKE. 
Thread-like trailing or twining plant, with no proper. 
f leaves. J 
Cus'cuta. Dodder. 
plant with leaves. 
_Corolla (or petal-like calyx) of 4 segments. 
_ _-Calyx and corolla each of 4 pink (or white) seg- ) 
é ments; leaves minute, 4-ranked. a oy 
| | Callu’na vulgaris. Ling? 
Neither leaves nor flowers of this nature. 
_Flower-segments joined in one piece ; poe mar 
roundish and obtuse. 
L Chrysosple’nium. Golden Saxifrage. y 
Segments separate to their base. 
Stem with 2 leaves only; stamens 4 hy 
: | number. 
| 
= 
Maian'themum Convalla'ria./ 
~Stem with several leaves; stamens many. 
Flowers about + inch across, the stamens~ 
( usually protruding outside. 
Leaves divided into oval leaflets, bordered 
[ by numerous sharp teeth. 
| Actez’a spica'ta. Laneberry. 
i Leaflets more or less rounded or wedge-~ 
Pe Wis 
shaped, with few teeth or lobes. 
Thalic'trum. Aue. 
~Flowers an inch or more across; stamens. 
not protruding. | 
PAPAVERA'CEZ.~ 
ee : 
~Corolla not of 4 segments. 
