MONOCOTYLEDONS. 35 



greenish-yellow, segments 6, distinct, deciduous ; stamens 6, 

 liypogynous, filaments slender, smooth ; ovary 3-celled, many- 

 ovuled, styles 3, slender, recurved ; fruit a globose berry. 



M. ViRGiNiANA L. Indian Cucumbkr-koot. Stem clothed 

 with loose deciduous wool, erect, 1-2 ft. high ; the lower whorl of 

 0-8 sessile, ohloug-lanceolate, acuminate, 3-5-nerved leaves, the upper 

 whorl of 3-4, ovate, sessile or short-petioled leaves ; flowers 2-8, nod- 

 ding, becoming ascending in fruit ; perianth segments i-i in. long, 

 obtuse ; styles red, berry dark purple. May- June. Shady banks and 

 moist woods. 



IV. TRILLIUM. 



Perennial, from tuberous rootstocks ; stem simple, erect ; 

 leaves 3, wdiorled at the summit of the stem ; flower terminal, 

 solitary, peduncled or sessile, perfect ; perianth of 6 leaves, 

 the 3 outer green, persistent, the 3 inner colored and petal- 

 like, deciduous or persistent ; stamens 6, liypogynous, fila- 

 ments short ; ovary sessile, G-ribbed, 3-celled, many-ovuled, 

 styles 3, slender, recurved, persistent; fruit a subglobose, 

 many-seeded purple berry. 



1. T. SEssiLK L. Sessilk-flowp:rkd Wake-robin. Kootstock 

 erect or ascending, corm-like ; stem slender, 1-8 in. high ; leaves 

 l)roadly oval, obtuse or acute at the apex, rounded and sessile at the 

 base, 3-5-nerved, smooth, bright green, not mottled ; flowers sessile, 

 sepals lanceolate, |-1 in. long, petals purple, elliptical, about the 

 length of the sepals ; stamens half the length of the petals ; styles 

 elongated, straight. April-ALiy. In rich woods. 



2. T. I'ndekwoodii Small. Underwood's Wake-robin. Root- 

 stock horizontal, stem stout, 4-12 in. high ; leaves ovate-lanceolate 

 to broadly ovate, acute or short acuminate at the apex, rounded and 

 sessile at the base, wavy on the margins, 3-r)-nerved, glabrous, 

 prominently mottled with different shades of green ; flowers sessile, 

 sepals lanceolate, 1.2-2 in. long, often purplish green, petals purple, 

 lanceolate to ohlanceolate, 2-3 in. long; stamens ]-' tiie length vi 

 the petals, style very short, stigmas recurved ; fruit an ovoid herry. 

 Aj)ril-May. In rich woods. 



3. T. (jrandiflortm (Michx.) Salish. Large-elowekkd 

 Wake-kobin. Kootstock horizontal, stem slender, 12-18 in. higii ; 

 leaves rhombic-ovate, acuminate at the ajx'X, rounded ami sessile or 

 slightly peduncl('<l at lln' base, smooth and glaucous, o-T-nervcd, 



