Ib 
}2Z Plants not 
Be a nl geet 
surround: d by 3 yellowish 
leafy envelope; the whole 
resembling a calla lily, appear- 
\ ing before the leavesy 
as avove 
4 Flowers each consisting of 
usually 3 stamens and 1 
pistil, without a proper 
perianth, borne in the axils 
of membranous greenish or 
brown bracts which become 
chaffy on dryingy(grasses and 
sedges 
I 
ee eee ee 
an ae 
IS 
Zach flower borne in the 
axil of a single bract, 
arranged in compact clusters; 
leaves 3-ranked; stems solid; 
sedges Cyperaceae (. J 
i Zach flower enclosed between 
two unequal bracts, arranged 
o¢ in compact clusters; leaves. 
ra \ 2-ranked; stems hollow; : . 
\srasses Gramineae | p — \4 
Flowers consisting of 6 (very 
rarely 3) stamens and one, 
three or six pistils, sur- 
i4 
jG ( rounded by 6 greenish or brown 
mA “ \ membranous similar perianth 
segments, arranged in two 
seriesy 
Ae Caroels complately joined, . 
Jopeniie sy Loculicidal 
201 valves at maturity but not e 
ai \ splitting apart, Juncaceae ae 
fi Carsels nearly free in flower. 
, or splitting apart at mate F 
29 \urity if Joinedy Scheuchzeriaceae Pf: 
2b Perianth petal-like, white or colored, rarely 
sreenisn, conspicuous, the segments either all 
- similar or in 2 unlike saries, or all more or less 
is \dissinilary 
4 Svomerged aquatics with lanceolate leaves in ; 
«ji aAwherls of 3, 1l-1.5 cm. long, 1+-1.5 mm. wide Hydrocharitaceae § 
tee rea erie plants 
i} Ovarias numerous in each flower, distinct, 
Heither in cloves? neads or in a ring upon 
