274 MELANTHIACEAE 
pellary: styles distinct. Fruit capsular, septicidal and rarely also loculi- 
eidal.—About 40 genera and 150 species, of wide geographic distribution. 
Anthers oblong or ovoid, 2-celled. 
Anther-sacs introrsely dehiscent. 
Anther-sacs extrorsely dehiscent. Tribe II. HELONIEAE. 
Anthers CE ed dere E sometimes becoming peltate, 
conflue : 
Sepals and arate Ria dess Tribe III. VERATREAE. 
Sepals and petals with glands at or near the base. Tribe IV. MELANTHIEAE. 
TOFIE 
prac ae flowers uen b 3 ee Gee: sta- 
S 6: anthers er 
Flowers in CERERI GPS d nemen seeds unappendaged. 
Flowers in centrifugal panicles: seeds appendaged. 
Bracts spathe-like : bractlets wanting: stamens 9-12: anthers 
versatile. 
I qud ne 
Flowers perfect: sepals and petals ovate or oblon 
Ca pu not depressed, 6-seeded, 2 seeds to each cavity : 
fiowers long-pedicelled : leaves slender and w 
Capsule ‘depressed, many-seeded : oe net pedicelled: 
leaves with flat bl ades and flesh 
Flowers dioecious : E and petals E aie spatulate. 
III. VERATREAE 
AE panieulate: flowers polygamous or monoecious. 
Ovary wholly superior: styles MEE petals obtuse. 
vary inferi ior “A DE base: styles very short and stout: 
Inflorescence rac oe or spicate: flowers perfec 
arpels united to near the tips: sepals and Dci narrow : 
laments lon Deer r than the petals: capsule with narrow 
erect carpe 
Carpels uned below the middle: sepals and petals broad: 
filaments shorter than the petals: eapsule with turgid 
spreading carpels. 
IV. e 
Sepals and petals with a single gland e 
Flowers polygamous : rootstock fibrous- Coated. 
Flowers eee rootstock membra s-coated. 
Flow in an ovoid or cylindric raceme: perianth 
ai nds obovate or suborbicular 
Ovary wholly superior: capsule PT or ellipsoid. 
Ovary inferior at the base: capsule conic. 
Flowers in a widely Dranchins panicle: perianth- 
lands obcordate. 
Sepals and petals with 2 glands each. 
e my clawed: flowers perfect: seeds angled: plant 
gla 
Petals long-clawed : flowers polygamous: seeds winged: 
Fa escent. 
TOFIELDIA Huds. Herbs with 
2e foliage. Leaves nearly erect. 
Flowers perfect, racemose. Petals longer 
and more concave than the sepals.— 
About 12 species, mostly natives of the 
north temperate zone. 
1. T. glabra Nutt. Plant 3-6 dm. tall: 
eum M — ses e bates 
raceme 2-10 cm. long: pe 2 els 
duos d pd ng, 2.5—3.5 ae ane 
als white, acute: capsule 3- 3.5 5 mm. long.— 
( WHITE- FEATHERLING. )—Low pinelands, 
Coastal Plain, Ga. to N. C.—Fal 
Tribe I, TOFIELDIEAE. 
1. TOFIELDIA. 
2. TRIANTHA. 
3. PLEEA. 
4, XEROPHYLLUM. 
. HELO 
MIU M. 
7. VERATRUM. 
8. STENANTHIUM. 
9. SCHOENOCAULON. 
10. CHROSPERMA. 
11. OCEANOROS. 
12. TOXICOSCORDION. 
1 
3. TRACYANTHUS. 
14. ANTICLEA. 
15. ZYGADENUS. 
16. MELANTHIUM. 
