100 MALVACEAE. (mALLOW FAMILT). 



dunclcs crowded on the stem and branches, the fruit downy : lias escaped from 

 gardens to waysides. (Adv. from Eu.) 



5. M. AiAiiA, L., with the sUm-ltcices only once bpurtecl or di/l, tlie iohes 

 incised, hirgc llowers like No. 4, but the truit smooth, and bractlets of tiie 

 involuccl ovate : has escaped irom gardens iu Chester Co., Penn. (Adv. 

 from Eu.) 



3. CAIiLIRRHOiJ, Xutt. C.\LLiRi!iioii;. 



Calyx cither naked or with a S-leavcd involuccl at its base. Petals wedge- 

 shaped and truncate (usually red-purple). Styles, &c. as in Malva. Carpels 

 10-20, straightish, with a short empty beak, separated within from the 1- 

 seeded cell by a narrow projection, indehiscent or partly 2-valved. Kadiclc 

 pointing downwards. — Flowers perfect. 



1. C. triangulkta, Gray. Hairy-pubescent; stems nearly erect (2° 

 high) from a tuberous root; leaves triangular or halbcrd-shapcd, or the lowest 

 ratlier heart-shaped, coar.sely crenatc ; the upper incised or3-5-cleft; flowers 

 panieled, short-pedicelled (purple) ; tnvolucel as long as the culijx; carpels short- 

 pointed, crestless. (Malva triangulata, Leavenworth. M. Houghtonii, Torr. ^ 

 Gray.) — Dry prairies, Wisconsin, Illinois, and southward. July. 



2. C. alcseoides, Gray. Strigose-pube.scent ; stems slender (1° high) 

 from a perennial root; lower leaves triangular-heart-shaped, incised ; the upper 

 5-7-parted, laciniate, the uppermost divided into linear segments; flowers 

 corymbose, on slender peduncles (rose-color or white); involucel none ; carpels 

 obtusely beaked, crested and strongly itrinkled on the back. (Sida alca;oides. 

 Michx.) — Barren oak-lands, S. Kentucky and Tennessee. 



4. NAPJEA, Clayt. Glade Mallow. 



Calyx naked at the base, .5-toothed. Petals entire. Flowers dicecious ; the 

 staminate flowers destitute of pistils, with 15-20 anthers; the fertile with a 

 short column of filaments but usually no anthers. Styles 8-10, stigmatic 

 along the inside. Fruit depressed-globular, separating when ripe into as many 

 kidney-shaped 1 -seeded beakless and scarcely dehiscent carpels as there are 

 styles. Radicle pointing downwards. — A tall and ronghish perennial herb, 

 with very large 9-11-parted lower leaves, the pointed lobes pinnatifid-cut and 

 toothed, and small white flowers in panieled clustered corymbs. (Named by 

 Clayton from vanr), a wooded valley or glade, or, poetically, the nymph of 

 the groves.) 



1. N. di6ica, L. (Sida dioica, Car.) — Limestone valleys, Pcnn. an.l 

 Bouthward to the Valley of Virginia, west to Ohio and Illinois : rare. July. 



5. MALVASTRUM, Gray. False Malloav. 



Calyx with an involuccl of 2 or 3 bractlets, or none. Petals notched at the 

 end or entire. Styles 5 or more : stigmas capitate. Carpels as in Malva, or 

 else as in Sida, but the solitary kidney-shaped seed ascending and the radicle 

 pointing downwards, as in the former. — Flowers perfect. (Name altered from 

 Malva.) 



