320 LiILJACEAE 



1. S. bigelovii Torr. SLINK-POD. Leaves usually 2 (rarely 3), elliptic to 

 oblong, acute, commonly mottled with dark splotches, 4 to 9 inches long, sheath- 

 ing at base ; flowers with a fetid odor and having something the appearance 

 of orchids ; pedicels 4 to 9 inches long, 3-angled, slightly winged, erect in flower, 

 in fruit tortuous recurving or procumbent, the maturing capsule more or less 

 hidden by forest litter; sepals ovate-lanceolate, 7 to 9 lines long, with 10 or 12 

 black veins, somewhat carinate toward the base, the upper % abruptly spreading 

 or recurved; petals linear-subulate, as long as the sepals, hardly 1 line wide, 

 ascending at base and with their long points convergent, forming an arch above 

 the pistil ; stamens 2^ to 3 lines long. 



Deep cold shades of the Redwood forest, Santa Cruz Co. to Humboldt Co. 

 North to southwestern Oregon. Jan.-Mar. Called ' ' Brownies ' ' in Humboldt Co. 



Locs. Felton, Sonne; Kings Mt., C. F. Baker 322; Hillsboro, Inez Smith; Mill Valley, 

 Jepson; Guerneville, M. S. Baker; Pepperwood, Jepson; Dinsmore Eanch, Van Duzen Biver, 

 Tracy 4017. 



Befs. SCOLIOPUS BIGELOVII Torr. Pac. B. Bep. 4:145, t. 22 (1857), type loc. Mt. Tamal- 

 pais, Bigelow; K. Brandegee, Zoe, 2:79 (1891); Jepson, Fl. W. Mid. Cal. 124 (1901). 



30. TRILLIUM L. WAKE ROBIN 



Stem simple, from a tuberous rootstock, naked below and bearing at the sum- 

 mit a whorl of 3 round-ovate netted-veined leaves and a single large flower. 

 Perianth of 3 lanceolate herbaceous persistent sepals and 3 larger colored petals. 

 Stamens 6, much shorter than the segments; anthers linear, on short filaments, 

 adnate. Ovary 3 to 6-angled, 3-celled or 1 -celled at summit. Styles 3, elongated, 

 stigmatic down the inside. Fruit a fleshy reddish capsule. Seeds ovate. About 

 17 species, North America and Asia. (Latin triplum, triple, on account of the 

 3-merous flowers.) 



Bibliog. Gleason, H. A., Pedunculate Species of Trillium (Bull. Torr. Club, 33:387-396, 

 1906). Goodspeed and Brandt, Notes on the Californian Species of Trillium (Univ. Cal. 

 Publ. Bot. 7:1-88, pis. 1-17, 1916-1917). Gates, B. B., Systematic Study of the N. Am. 

 genus Trillium, its variability and its relation to Paris and Medeola (Ann. Mo. Bot. Gard. 

 4:43-92, pis. 6-8, 1917). 



Flower sessile; leaves sessile 1. T. sessile. 



Flower raised on a peduncle. 



Leaves sessile or nearly so; peduncle erect - 2. T. ovatum. 



Leaves petioled; peduncle usually declined 3. T. rivale. 



1. T. sessile L. var. giganteum H. & A. COMMON TRILLIUM. Stem stout, 

 sometimes more than one from the same root, 1 to 1% feet high ; leaves round- 

 ovate, 2 l /2 to 5 inches long, commonly broader than long; petals obovate to ob- 

 lanceolate, iy 2 to 3 inches long, deep red or lilac, or varying to dull white ; capsule 

 long-oval to subglobose, obscurely 6-angled above, circumscissile around the plat- 

 form-like base. 



Brushy or wooded hill-slopes or canons: Coast Ranges from Monterey Co. 

 north to Siskiyou Co., but not in inner Coast Range. North to "Washington. The 

 Californian plant is larger in all its parts than the Eastern plant (the type of 

 T. sessile), but even this difference is not a constant one (T. H. Goodspeed). 

 Feb.-Mar. 



Locs. Los Buellis hills, Santa Clara Co., B. J. Smith; Los Gatos, Heller 7254; Colma, 

 Michener $ Bioletti; Oakland Hills, Jepson 3107-3110; Howell Mt., Jepson; Lake Co., 

 Michener; Yreka, Greene. 



Var. chloropetalum Torr. Petals yellowish or greenish-yellow. Monterey Co. to Sis- 

 kiyou Co. and south in the northern Sierra Nevada to Placer Co. The form with pure white 

 petals (Bock Lily) is found from Napa Valley to Humboldt Co. 



Locs. Mill Creek Canon, Santa Lucia Mts., Marion Parsons; Crystal Springs Lake, San 

 Mateo Co., C. F. Baker 431; Mt. Tamalpais, Greene; Olema, Davy; Clear Creek, Shasta Co., 

 Goldsmith; Humbug, Siskiyou Co., Butler 669. Pure white flowers: St. Helena; Mendocino 

 City; Buck Mt., Humboldt Co., Tracy 4181. 



