TRILLIUM RHOMBOI'DEUM. 
§ RHOMBOIDAL TRILLIUM. 2 
ENDOGEN&, oR MONOCOTYLEDONEA. 
Natural division 
to which 
this Plant belongs, 
NATURAL ORDER, SMILACE, 
RTA fi 
Aly fit 
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ANI if 
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AN 
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SPADICOSE, Artificial divisions HEXANDRIA, 
OF to which TRYGINIA, 
LINDLEY, this Plant belongs. OF LINNEUS. 
No. 138. 
Tri ILLIUM. MILLER. Fores s hermaphroditi. PERIGONIUM hex- 
a 
majora petaloidea. Sramrna sex, perigonii foliolis basi inserta; gee te 
filiformia a connectivo ultra anthere Stlatak lineares margi 
acumen brev. e producto. Ovarium triloculare. vurta plurima, Sieorteth, 
adscendentia, anatropa. Styxi tres, eine vel rarissime basi connati, 
patentes, recurvi; stigmata obsoleta. cea trilocularis. Semrina plurim 
i ote retica é 
summis Indiz jugis rarissime; caule simplicissimo foliis icillatis, sessili- 
bus, ovatis, nervosis, flore terminali solitario, inter foli ia ae vel pedicillato, 
pedicello nudo. Ewpzicwer: Genera Plantarum, p. 153. 
PECIES. Tritttum RHOMBOIDEUM. Micuavx. Fortis late-rhomboideis; 
stags inclinato; perigonii laciniis ‘iene longitudine subaequ ee 
ectis; exterioribus ovali amaticiatin: interioribus plus minus ovalibus: 
caine nigrican 
CHARACTER OF THE GENUS, TRILLIUM. FLOWERS hermaphro- 
dite. Pericon of six leaves, spreading or reflexed, persistent; three 
of the leaflets external, resembling a calyx, three internal, larger and 
petaloid. STameEns six, inserted on the base of the leaves of the peri- 
gon; filaments filiform, free, the connectivum prolonged beyond the” 
linear marginal cells of the anthers, and terminating in a short point. 
Ovary three-celled. OvuLEs numerous, in two rows, ascending, 
anatropous. STYLES three, distinct or very rarely united at the base, 
spreading, recurved; stigmata obsolete. Brrry three-celled. Sreps 
numerous, obovately-subglobose, horizontal, testa coriaceous, brown- 
ish, umbilicus basilar, united by means of the filiform rhaphe with 
the chalaza at the summit. Emspryo very smal], inclosed in a very 
solid fleshy albumen near the umbilicus, the radicle centripetal. 
DESCRIPTION OF THE Species, TRILLIUM RHOMBOIDEUM. STEM 
perennial, tuberous, sending up annually an herbaceous, simple, 
