132 SAXIFRAGACEAE 



Loca. — Const Rnngea: Santa Cruz Mts. (Anderson, Nat. Hist. Santa Cruz Co. 37); Fish 

 lianch, Borkcloy Hills, Jcp.snn 13,401; Lake Tcini'scal, n\v. Alaiiifda Co., Chcsnut; Olenia, Marin 

 Co., Jcpson 40:U>; Carlotta, Ihinihuldt Co., .1/. S. llalrr ; lliuiiboldt Bay, Chandler 1232; head of 

 Indian Creek, Siskiyou Mts., ,J('}).son 2'.)4r). Plumas Co.: Kieh Point, Middle Fork Feather River, 

 Jcpson 10,616 ; Twain, W. I. I'oUctt ; Schneider Creek, E. Fritz. Orca, Alas., Jcpson 428, 



Rrfs. — Teli.ima grandiflora Dougl.; Lindl. Bot Reg. t. 1178 (1828) ; Jcpson, Fl. W. Mid. 

 Cal. 270 (1001), ed. 2, 199 (1911), Man. 461 (1925). Mitella grandiflora Pursh, Fl. 314 (1814), 

 type loc. "Northwest Coast", Menzies. 



10. MITELLA L. 



Perennial herbs with rootstoeks. Stems slender, often scape-like, ending in 

 a spike-like raceme oi" small flowers. Calyx-tube about half-coherent with the 

 ovary. Petals cleft. Stamens (in ours) 5, the filaments vers- short. Styles 2, short. 

 Capsule opening before the seeds are ripe, the valves short and broad, forming a 

 narrow rim to the pod. — Species 12, temperate and boreal regions of North America 

 and Asia. (Diminutive of the Latin mitra, a cap, in allusion to the pod.) 



BiblioR.— Piper, C. V., Mitella trifida Graham and its allies (Erythea 7:159-163, — 1899). 

 Rosendahl. C. O., Revision of the p^enus Mitella, with a discussion of geographical distribution 

 and relationships (Engler, Bot. Jahrb. 50: suppleb. 375-397, figs. 1-9, — 1914). 



Petals whitish, palmately 3-cleft at apex ; calyx broadly turbinate, its lobes triangular-lanceolate 

 with acute sinuses, erect or little spreading; stamens erect; anthers ovate; styles simple; 

 raceme 1-sided. 



Leaves obscurely lobed, crenate 1. M. trifida. 



Leaves commonly 3-lobed above, not crenate 2. M. diversifolia. 



Petals greenish, pinnately cleft into capillary divisions; calyx dish-shaped or saucer-shaped, its 

 lobes short and broad with obtuse sinuses, spreading (the limb, therefore, merely un- 

 dulate) ; stamens inflcxed; anthers reniform; styles 2-lobed; raceme not l-sided. 



Disk of the flower inconspicuous; stems leafy 3. M. caulescens. 



Disk of the flower conspicuous, the ovary imbedded in it; stems naked, scape-like. 

 Stamens opposite the sepals (as in the two preceding). 



Leaf-blades mainly glabrous 4. M. breweri. 



Leaf-blades with scattered hairs 5. M. ovalis. 



Stamens opposite the petals 6. M. pentandra, 



1. M. trifida Graham. Plants 8 to 17 inches high; scapes and petioles re- 

 trorsely more or less hispid; leaf -blades round-cordate, crenate, obscurely lobed, 

 short-hispid with scattered hairs or glabrous, % to 2% inches broad; calyx-lobes 

 whitish; petals linear, 3-cleft at apex. 



]\Iontane, in moist woods, 4800 to 6000 feet : Plumas Co. ; northern Trinity Co. ; 

 Siskiyou Co. North to Saskatchewan. June-July. 



Locs. — Nelson Creek, Plumas Co., Hall 9357; Union Creek, Salmon Mts.; Marble Mt., Chand- 

 ler 1555a; Humbug Mt., Siskiyou Co., Butler. 



Refs. — Mitella trifida Graham, Edin. New Phil. Jour. 7:185 (1829), type a garden plant 

 raised from seed collected in British America, Dntmmond; Hook. Fl. Bor. Am. 1:241, t. 82 

 (1834) ; Jepson, Man. 461 (1925). Ozomelis trifida Rydb. N. Am. Fl. 22:95 (1905). 



M. anomala Piper, Erythea 7:162 (1899), type loc. mts. near Yreka, Greene 906; petals none; 

 stamens short, included, or replaced by stamrnodia, these elongate-cuneate, palmately and acutely 

 3 to 5-cleft, exceeding the calyx-lobes (ex char.). 



2. M. diversif olia Greene. Plants 10 to 16 inches high ; pubescence as in no. 1 ; 

 leaf -blades round-ovate in outline, cordate at base, most of them angularly 3-lobed 

 above, the margin otherwise subentire, 1 to 3 inches long; calyx-lobes whitish; 

 petals linear-cuneate, 3-cleft at apex. 



Wet places in the mountains, 3500 to 6000 feet : Trinity Co. to western Siskiyou 

 Co. North to Washington. July, 



Locs.— Trinity Summit, Humboldt Co., Bavy 5753; Coffee Creek, Salmon Mts.; Marble 

 Mt., Chandler 1555 ; head of Long Gulch near Yreka, Butler 224 ; Humbug Mt., Siskiyou Co., 

 Butler U91. h , j , 



Refs.— Mitella diversifolia Greene, West Am. Sei 3:24 (1887), type loc. Trinity Summit, 

 Humboldt Co., C. C. Marshall; Pitt. 1:32 (1887) ; Jepson, Man. 461 (1925). Osomelis diversi- 

 folia Rydb. N. Am. Fl. 22:94 (1905). 



