ROSE FAMILY 215 



1. S. annua Niitt. Western Burnet. Stem erect, branching at or near the 

 base, 12 to 20 (or 24) inches high; leaflets 3 to 5 lines long, incisely parted into 

 narrow lobes; spikes oblong, 4 to 6 (or 10) lines long; flowers 1 to 2 lines wide; 

 calyx-lobes oval, mucronulate, scarious-margined. 



Dry flats or moist meadows in the mountains, 2500 to 5500 feet: Cuyamaca 

 Mts.; Nevada Co. to Modoc Co., thence west to Humboldt Co. North to British 

 Columbia, east to Arkansas. June-July. 



Locs. — Stonewall Mine, Cuyamaca Mts., San Diego Co., Parish 4418 ; Donner Lake, Nevada 

 Co., Heller 6903 ; Mineral, Tehama Co., Jepson 12,337 ; Prattville, Plumas Co., Jepson 4133 ; Jess 

 Valley, Warner Mts., Jepson 7957 ; Buck Creek, Warner Mts., L. S. Smith 936 ; Forestdale, sw. 

 Modoc Co., Nutting; Sisson, Siskiyou Co., Jepson 13,862; Quartz Valley, Siskiyou Co., Butler 

 1468 ; Van Duzen Eiver valley, opp. Buck Mt., Humboldt Co., Tracy 2816. 



Eefs.— Sanguisorba annua Nutt.; T. & G. Fl. 1:429 (1840); Jepson, Man. 501 (1925). 

 Poterium annuum Nutt.; Hook. Fl. Bor. Am. 1:198 (1834), type loc. Eed Eiver, Ark., NuttalL 

 Poteridium annuum Spach, Ann. Sci, Nat. ser. 3, 5:43 (1846). Sanguisorba occidentale Nutt.; 

 T. & G. I.e., type from Ore., NuttalL Poteridium occidentale Eydb. N. Am. Fl. 22:888 (1908). 



2. S. minor Scop. Garden Burnet. Stems erect, branched, leafy, several 

 from a branched root-crown, 8 to 20 inches high; herbage glabrous or (especially 

 below) sparsely pubescent; leaflets 6 to 10, orbicular, coarsely serrate, 4 to 6 lines 

 long; heads subglobose or short-oblong, 5 lines long; flowers unisexual, the lower 

 staminate, the upper pistillate, about 3 lines wide; bracts and bractlets ovate, 

 ciliate; calyx-lobes oval, acute or apiculate, often purple-tinged; stamens and stig- 

 mas purplish, exserted. 



European garden plant, occasionally cultivated and sparingly naturalized: 

 Napa Range; San Francisco Co. May- June. 



Locs. — St. Helena, Jepson 3007 ; Calistoga, Crum 813 ; San Francisco, Greene. 



Eefs.— Sanguisorba minor Scop. Fl. Cam. ed. 2, 1:110 (1772) ; Jepson, Man, 501 (1925). 

 Poteri^im sanguisorba L, Sp, PL 994 (1753), type from Europe. P. minus S. F. Gray, Nat. Arr. 

 Brit. PI. 2:575 (1821). 



3. S. officinalis L. Great Burnet. Stems erect, 2 to 3 feet high; herbage 

 glabrous; leaflets roundish to ovate, cordate at base, serrate, 1 to 1% inches long; 

 spikes short-cylindric, 6 to 11 lines long; flowers 2 to 2^ lines wide; calyx-lobes 

 oval, dark purple. 



Peat bogs near the coast, 50 to 4000 feet : Mendocino Co. to Del Norte Co. 

 North to British Columbia. Europe, Asia. July-Sept. 



Locs. — Albion, Mendocino Co., Davy 6080 ; Bald Mt., betw. High Prairie and Snow Camp, 

 Humboldt Co., Tracy 4602 ; Gasquet, Del Norte Co., M. S. Baker 284. 



Eefs. — Sanguisorba OFnciNALis L. Sp. PI. 116 (1753), type from Europe; Jepson, Man. 

 501 (1925). Poterium officinale Gray, Proc. Am. Acad. 7:340 (1868). S. microcephala Presl, 

 Epim. Bot. 202 (1849), type loc. Nootka Sound, EaenTce. 



19. ALCHEMILLA L. 



Ours a diminutive annual herb, with palmately-lobed leaves and sheathing 

 stipules. Flowers minute, greenish, pediceled and fascicled in the axils. Calyx 

 pitcher-shaped, its lobes 4 or 5 ; bractlets 4 or 5, or sometimes minute or obsolete. 

 Petals none. Stamens 1 to 4. Pistils 1 to 4 (in ours 1), distinct, the slender style 

 lateral or arising from near the base. Achene ovate, smooth, concealed in the tube 

 of the persistent calyx. — Species about 80, all continents, but mostly in the Andes 

 from Chile north to Mexico. (So named because valued in alchemy.) 



1. A. arvensis Scop. Lady's Mantle. Stems usually branched from the 

 base, erect or ascending, 1 to 5 (or 9) inches long, the branches slender and flower- 

 bearing throughout; herbage scantily soft-hairy; leaves fan-shaped, 3-parted, 2 to 

 3 lines long, the segments 2 or 3-cleft; calyx % to % line long. 



Low hills and plains, 5 to 2500 feet : widely distributed in eismontane Califor- 

 nia. Naturalized from Europe. Mar.-May. 



