ORDER 23. MALVACEAE. 61 



4. MODIOLA, Mcench. (Lat. modiolus, a certain measure ; from the 

 fancied resemblance of the fruit to a basket.) Calyx 5-cleft, with an in- 

 volucel of 3 bractlets at base. Stigmas 15 20, capitate. Carpels same num- 

 ber, 2-seeded, transversely 2-celled, 2-valved. (|XD Prostrate, with cleft 

 leaves and small flowers. 



OT. multifida Mcench. Lvs. roundish, cordate, 35 cleft; segm. cut-toothed; ped. 

 soon longer than the petioles, u Car. Ga. and W. 1 2f. Fls 6", red. July, Aug. 



5. MALVASTRUM, Gray. (Name altered from Malva.) InvoluccI 

 of 1 3 leaves, or 0. Styles 5 20. Stigmas capitate. Carp. 5 GO , often 

 beaked or awned, each 1-seeded. 



1 M. angustum Gr. Branched, erect, hairy; Ivs. lanceolate, with bristle-form stip. ; 



invol. briHtleform ; carps. 5, dehiscent. S. Car. Ga. If. Fls. yellow. (Sida, Ph.) 



2 M. trlcuspi datum Gr. Shrubby; rough-hirsute; Ivs. ov. -oblong; stip. lanceo- 



late ; invol. 3- leaved ; carp. 1012, 3-awned at apex, n S. Fla. If. Yellow. 



6. NAP.S1A, Clayt. (Nany, a wooded valley between mountains, 

 where Clayton discovered the plant.) In volucel none. Calyx 5-toothed ; 

 fls. dioecious. Styles 6 8, with filiform stigmas. Carpels as many, 1-seeded, 

 indehiscent, beakless, circularly arranged, if Tall, with large, palmately 

 divided leaves and small white flowers in leafy panicles. 



N. dioica L.-Kocky thickets, Pa. Va. to 111. Stem weak. 4 6f. Leaf segm. 511, 

 lanceolate, acuminate, coarsely toothed. Flowers 4 5". August. 



7. SIDA, L. Involucel 0. Fls. perfect. Calyx 5-cleft. Styles 5 or 

 more, with the stigmas capitate or truncate. Carp. 5 GO, 1-seeded, finally 

 separable. Herbs or shrubs, mostly tomentous. 



* Leaves palmately parted. Flowers rose-white. Carpels beaked Nos. 1, 8 



* Leaves undivided. Flowers red or yellow. a Carpels 5 or 7 Nos. 3, 4 



a Carpels 1012 Nos. 58 



1 S. Napaea Cav. Nearly glabrous ; Ivs. palmately 5-lobed, lobes oblong, acuminate, 



coarsely-toothed ; ped. many-flowered ; carpels 10, acuminate-beaked. U Woods, 

 Penn. to Va. 3f. Fls. 8". White. July. 



2 S. alcaeoides MX. Strigous-pubescent ; Ivs. palmately 5-7-parted, the segments 



laciniate ; fls. corymbed, terminal ; carp. 10, acute. ii In barren oaklands, Tenn. Ky. 

 1 2f. Fls. nearly as large as in the Musk Mallow. (Callirrhoe alcseoides Gr.) 



3 S. spiiiosa L. St. rigid ; Ivs. ovate-lanceolate, serrate, with a spinous tubercle at 



the base of the petiole ; slip, setaceous, shorter than the petioles or axillary pedun- 

 cles ; carp. 5, birostrate. Sandy, M. and W. 8 16'. Yellow. July. 



4 S. cillaris Cav. St. prostrate ; Ivs. elliptical, obtuse ; stip. setaceous, and calyx 



ciliate ; carp. 7, tipped with 2 spines ; fls. red. 2f S. Fla. 



5 S. stipnlata, Cav. Smoothish; leaves rhombic-lanceolate, dentate; stip. subulate, 



longer than the petioles, persistent ; carpels 10 12, pointed with 2 short spines, li 

 Sandy soil?, S. 18'. Pet. 5", yellow. July. (S. hispida C-B.) 



6 S. i:i liot I ii Torr. & Gr. Lvs. linear-oblong, obtuse at base ; ped. 1-flowered, a littiO 



longer than the petioles ; caps, truncate, ii Sandy soils, S. 3f. Yellow. 



7 S. rh o m bilol in L. Leaves rhombic-oblong, serrate, cuneate and entire at base; 



ped. much longer than the petioles ; caps. 2-beaked. (T) S. Car. to Fla. 2f. Yellow. 



8. ABUTILON, Dill. INDIAN MALLOW. Calyx 5-cleft, without an in 

 volucel, often angular. Styles 5 to 20, with capitate stigs. Carps, as many, 

 ananged circularly, each 1-celled, 3 to 6-seeded, and opening by 2 valves 



