<iO ORDER 23. MALVACEAE. 



InTolucel of 6 to 9 bractlets. Carpels 1-seeded .......................... ALTH^IA. 1 



Involucel of 3 distinct bractlets. Carpels 1-seeded. Stigmas linear ....... MAI.VA. 2 



Involncel of 3 united bractlets. Carpels 1-seeded ......................... L.XV.ITF.RA 3 



Involncel of 3 distinct bractlets. Carpels 2-seeded ........................ MODIOLA. 4 



Involucels (of 2 or 3 distinct bractlets). Carpels 1-seeded. Stig. capitate ____ MAtrASTitUM 5 



b Flowers direcions. Stigmas 10, linear ................................ NAPA 6 



ft Flowers perfect. Carpels 5 or more, 1-seeded ....................... SIDA. 7 



6 Flowers perfect. Carpels 5 or many, 3 to 9-seeded .................... ABUTII.ON. 8 



c Stigmas 10. Carpels 5, baccate, united ............................ MALVAVISCCS. ( 



F Stigmas 10. Carpels 5, dry, distinct ............................... PAVONIA. 1 



r Stigmas 5. Carpels 5, dry, united into a pod ....................... KOSTELKTZKY* 1 . 



il Invufucre of many bractlets. Calyx regular ................. HIBISCUS. 12 



d Involucre of 3 incisely-toothed bractlets ....................... OOSSYPIUM. 13 



J. ALTH2EA, L. MARSH MALLOW. ("^A.56J, to cure; the mucilagi- 

 nous root is highly esteemed in medicine.) Calyx surrounded at base by a 

 6-9-cleft involucel. Styles oo, with linear stigmas. Carpels oo, 1-seeded, 

 indehiscent, arranged circularly, and at maturity separating from the axis. 



1 A'. officln&lls L. Lvs. eoft-downy on both sides, cordate-ovate, dentate, somewhat 



3-lobed ; ped. much shorter than the leaves, exillary, many-flowered. U Salt marshes, 

 North. 3f. Flowers large, pale purple. Sept. Enr. 



2 A. rosea Cav. Hollyhock. St. erect, hairy ; Ivs. cordate, 5-7-angled, rugous ; fls. ax- 



illary, sessile. Gardens, often sowing itself. 6f. Flowers of all colors. 



2. MALVA, L. MALLOW. (MaAa^?;, soft; on account of the soft 

 mucilaginous properties.) Calyx 5-cleft, the involucel 3-leaved. Pet. 

 obcordate or truncate. Styles oo, with linear stigmas. Carpels oo, 1- 

 celled, 1-seeded, indehiscent, arranged circularly, and at maturity sepa- 

 rating from the axis. 



* Leaves triangular-hastate, crenate, scabrous. Carpels acute .................. No. 1 



* Leaves orbicular, with 5 7 angular lobes. Carpels obtuse ............... Nos. 2 \ 



* Leaves palmately 5-7-parted .............................................. Nos. 51 



I OT. trlangnlata Lav. Rough-hairy ; Ivs. triang.-hastate, crenate ; the lower cor- 



date ; panicle many-flowered ; carp. 10 15, slightly beaked, at length 2-valved. 2J Dry 

 prairies, W. and S. 2 3f. Petals 1', purple. July, Aug. (CallirrhoS triang. Or.) 

 t, OT. rotnndlfolia L. Low Mallow. St. prostrate ; ITS. obtusely 5-lobed : cor. pale, 

 twice as long as the calyx, li Waste grounds. If. June, July. Eur. 



3 OT. sylvestrls L. High Mallow. St. erect ; Ivs. 5-7-lobed, lobes rather acute ; pet. 



purple, 3 times longer than sepals. @ Waysides. 3f. Jnne, July. Eur. 



4 IW. crispa L. St. erect; Ivs. angular-lobed, dentate, crisped, smooth: fls axillary. 



sessile, white. (I) Gardens and waste grounds. 5f. June Aug. Syria. 



ft 3tt. moschata L. Musk Mallow. Erect ; radical Ivs. reniform, incised, canline 5- 

 parted, the segments linear-cuneiform, incisely lobed ; peduncles shorter than the 

 leaves. U Gardens and waysides. 2f. Flowers large, roseate. July. Enr. 



> M. A'Icea L. Erect; rt. Ivs. angular; St. Ivs. 5-lobed, the lobes merely incised : stem 

 and calyx velvety. 11 Escaped from gardens : rare. 3f. Fls. purple. July. + Eur. 



7 M. Papaver Cav. Poppy Mallow. Lvs. 3-5-parted, segm. oblong or linear, entire 

 or toothed ; fls. on very long peduncles ; bracteoles 13, subulate, if Open woods, 

 South. 12-18'. Flowers bright red. May, June. (Callirrhoe Papaver Gr.) 



3. LAVATERA, L. (Named in honor of the two Lamter*, physicians 

 of Zurich.) Calyx subtended by an involucel of 3 united bracteoles. 

 Stigmas oo, filiform. Carpels Go, 1-celled, 1-seeded, indehiscent, arranged 

 circularly as in Malva. 



t,. TKIMESTKIS. Annual ; Ivs. roundish-cordate, the upper angular ; fls. large, red, sol 5 

 tarv. Enrope. 2f. The flowers vary to white. July, Aug. 



