TRILLIACEAE 305 
MEDEOLA [Gronov.] L. Caulescent herbs, with long brittle root- 
Leaves and bracts with thinnish blades. Pedicels slender, more or 
ined. Anthers shorter aa 
. A A 
species. 
M. virginiana L. Stem 2-9 dm. m 
pen 4—10; blades mra spatulat 
or obovate 5-15 em. long: bracts s oe 
e d 
—15 mm. 
CUCUMBER-ROOT. Mibi P — t 
woods, various pnt , Fla 
Minn., and N. S.— —The os peus. 
like root- stock MCN ‘like cucumbers or 
raw potatoes. 
TRILLIUM L.1 Scapose herbs with firm corm-like rootstocks. Leaves 
and ba with thick blades. Pedicel stout, or solitary flower sessile. Corolla 
white or of various colors. nthers usually longer than the filaments. About 
25 species, of North America and eastern Asia.—Spr.—WAKE-ROBINS. BIRTH- 
ROOTS 
Flower sessile. 
Petals with claw-like bases which are sometimes different 
in coloring from the blades. I. RECURVATA. 
Petals not narrowed into claw-like blades, normally of one 
color throughout. II. SESSILES. 
HE pedicelled (Bes 0S in a form of e cues 
mas sessile, distinct: Styles wan III. ERECTA 
Stiemas terminating a short style. VI. PUSILLA. 
I. REC ATA 
Bracts narrowed into petiole-like bases: ue with ovate, el- 
liptie, oval or obovate blades 1. T. recurvatum. 
Bracts not narrowed at the bud petals with linear or linear- 
elliptie blades. 
Scape smooth and glabro 
v odd P Jance in or elliptie blades: anthers 
: filaments nearly as long as the anthers. 2. T. lanceolatum. 
Bracts “with ovate blades: anthers straight: filaments 
much shorter than the anthers. . T. ludovicianum. 
Scape a near the top (sometimes glabrous 
at maturity). 
E 
viride. 
II. SESSILES 
Petals broadly i sd one of them prominently apiculate : 
anthers less than 1 em. lon 5. T. discolor. 
EEE Dan lanceolate, elliptic, or oblanceolate: anthers 
e than 1 cm. lon 
Scape prd Saco rent near the top: bracts pubescent on 
the veins beneath. 
a ea erect: bracts raised above the ground: petals 2- 
long: anther-sacs 15-18 mm. long, the con- 
nective BOE much prolonged. 6. T. stamineum. 
Spe d tage bracts lying flat on the ground : pet- 
s 47 long: anther-saes 8-10 mm. long, "iio 
aa n prolonged. 7. T. decumbens. 
Scape. an nd bracts smooth and glabrou l 
Bracts typically 8 cm. long or I sepals 2-3.5 cm. 
ong. m 8. T. sessile. 
Bracts typically 10 em. long or more: sepals 4.5-5.5 
em. long. 
1 Prepared in part from the studies of Donald Culross Peattie. 
20 
