Spir^a. XLVIII. ROSACEiE. 9M 



18. SANGUIS ORB A. 

 Lai. sanguis, sorbere, q. d. to absorb blood j the plant ia esteemed a vulnerary. 



Calyx tube 4-sided, 2 or 3-bracted at base ; limb 4parted ; petals 

 ; stamens 4, opposite the calyx segments ; filaments dilated upwards ; 

 style 1 , filiform ; achenium dry, included in the calyx. — Herbs with 

 v,Hequally pinnate leaves. 



S. Canadensis. Burnet Saxifrage. 



Glabrous; Ifts. oblong, cordate, obtuse, seiTate; spikes den.se, cylindric, 

 very long ; sta. much longer than the calyx. — %. in wet meadows, U. S. and 

 Brit. Am., and cultivated in gardens. Stem 2 — 3f high, smooth, striate, spar- 

 ingly branched. Stipules leafy, serrate. Leaflets 2 — 4' long, j — J as wide, 

 petiolate, mostly stipellate. Spikes 3 — 6' long, terminating the long, naked 

 branches. Bracteoles 3. Calyx greenish white, resembling a corolla. Aug. 



19. POTERIUM. 



Lilerally a drinking vessel, and hence a beverage ; from the use of the plant. 



Fls. 8 ■ Calyx tube contracted at the mouth, 3-bracteate, limb 4- 

 parted ; petals ; stamens 20 — 30 ; ovaries 2 ; style filiform ; ache- 

 nia dry, included in the calyx. — Herbs with unequally pinnate leaves. 



P. SANGUisoRBA. Biimet. 



Herbaceous; st. unarmed, angular, and with the leaves, smooth; Ifts. 

 7 — 11, ovate or roundish, deeply serrate ; spikes or hds. subglobose, the lower 

 flowers staminate. — % Occasionally cultivated as a salad, but is now less valued 

 in medicine than formerly. It is said by Hooker to be native about Lake Huron. 



20. AGRIMONIA. 



Gr. avpos, a tield, jiovos, alone ; a name of dignity for its medicinal qualities. 



Calyx tube turbinate, contracted at the throat, armed with hooked 

 bristles above, limb 5-cleft; petals 5 ; stamens 12 — 15 ; ovaries 2 ; 

 styles terminal ; achcnia included in the indurated tube of the calyx. 

 — % L^s. pinnately divided. Fls. yellow, in long., slender racemes. 



1. A. EoPATORiA. Agrimony. 



Hirsute ; Ivs. interruptedly pinnate, upper ones 3-foliate ; Ifts. ovate, oval 

 or oval-lanceolate, coarsely dentate ; slip, large, dentate ; pet. twice longer than 

 the calyx.— Road sides, borders of fields. Can. and U. S., common. Stem I— 3f 

 high, branching, leafy. Leaflets 3, 5, 7, with small ones interposed, nearly 

 smooth beneath, 1^—3' long, J as wide, sessile, terminal one with a petiolule 

 1_3" long. Racemes G — 12' long, spicate. Flowers yellow, about 4" diam., 

 on very short pedicels. Calyx tube curiously fluted with 10 ribs, and sur- 

 mounted with reddish, hooked bristles. Jl. 



/?. hirsuta. Torr. — Smaller and more hairy. 



y. parviflora. Hook. (A. parviflora. £>C.)— Less hairy ;^. smaller, on longer 

 pedicels. 



2. A. PARVIFLORA. Ait. (A. suaveolens. Ph.) 



St. and petioles hirsute ; lis. interruptedly pinnate ; Ifts. numerous, crowded, 

 pubescent beneath, linear-lanceolate, equally and inci-sely serrate ; stip. acutely 

 incised ; rac. spicate-virgate ; fls. small ; pet. longer than calyx ; fr. hispid.—- 

 "Woods and dry meadows, Penn. ! to S. Car. W. to la. and Tenn. Stem 3 — 4f 

 high, the hairs spreading, brownish and glandular. Leaflets 2—3' by J— i', 

 with smaller ones intermixed. Petals yellow. The plant has an agreeable 

 balsamic odor. Aug. 



21. SPIR^A. 

 Gr. aneipa, a cord or wreath ; the flowers arc, or may be used in garlands. 



Calyx 5-cleft, persistent; petals 5, roundish; stamens 10 — 50, 

 exserted; carpels distinct, 3 — 12, follicular, 1-celled, 1 — 2-valved, 

 1 — 10-seeded ; styles terminal. — % Unarmed shrubs or herbs. Branches 

 and Ivs. alternate. Fls. white or rose-color, n£ver yellow. 



22* 



