MALVACEAE 209 



Stigma decurrent on the style : involucel of 2 or 3 bractlets. 



2. Malva. 

 Stigma terminal : involucel wanting. 3. Sida. 



b. Carpels 2-seeded. 4. Abutilon. 



B. Fruit a loculicidal capsule : stamen-column anther-bearing below the 

 summit. 

 Carpels i-seeded : capsules depressed. 5. Kosteletzkya. 



Carpels several-seeded : capsules not depressed. 6. Hibiscus. 



1. ALTHAEA L* 

 1. Althaea ofEcinalis L- Marsh-Mallow. (Man. p. 618 ; I. F. /. 

 2414.) In salt marshes, or waste places, coast of Mass. and N. Y. and in 

 Pa. Nat. from Eu. — Pennsylvania : Bucks ; Lancaster ; Erie. 



2. MALVA L. 



Leaf-blades with 5-9 shallow or angular lobes. 

 Petals 2-4 times as long as the sepals. i. M. sylvesiris. 



Petals 1-2 times as long as the sepals. 

 Low plants with procumbent stems. 2. M. rotundifolia. 



Tall plants with erect stems. 3. M. verticillata. 



Leaf-blades with 5-7 prominent lobes, or pinnatifid. 

 Carpels closely pubescent : stem-leaves 1-3-pinnatifid. 4. I\T. nwscliata. 

 Carpels glabrous : stem-leaves deeply lobed. 5. M. Alcea. 



1. Malva sylvestris L. High Mallow. (Man. p. 618 ; I. F. /. 2413.) 

 In waste places and along roadsides, sparingly adv. from Eu., in the U. 

 S., Can. and Mex. — Pennsylvania : Monroe ; Bucks ; Berks ; North- 

 ampton ; Lancaster ; Allegheny. 



2. Malva rotundifolia L. Low Mallow. Cheeses. (Man. p. 618; 

 I. F. /". 24/6.) In waste places, throughout the northern States. Nat. 

 from 'En.— Pennsylvania : Monroe ; Bucks ; Philadelphia ; Dela- 

 ware ; Chester ; Lancaster ; Huntingdon ; Franklin ; Alle- 

 gheny. 



3. Malva verticillata L. Whorled Mallow. (Man. p. 618; I. F. 

 /. 241 J.) In waste places, eastern U. S. Fugitive or adv. from Eu. — 

 Pennsylvania : Bucks. 



4. Malva moschata L. Musk Mallow or Rose. (Man. p. 619 ; I. 

 F. y. 241S.) In waste places, occasional in eastern N. Am. Adv. from 

 Eu. — Pennsylvania : Northampton ; Bucks ; Susquehanna ; Tioga ; 

 Venango ; Clearfield ; Erie. 



5. Malva Alcea L. European Mallow. (Man. p. 619; I. F. / 

 24ig.) In waste places generally. Introd. from Eu. — Pennsylvania: 

 Chester; Potter. 



3. SIDA L. 



Leaf -blades merely toothed : flowers axillary. i. S. spinosa. 



Leaf-blades palmately lobed : flowers paniculate. 2. S. herniaphrodita. 



* Althaea rosea Cav. (Hollyhock), has escaped from gardens in 

 Northampton, Bucks and Allegheny Counties. — Pennsylvania : Bucks ; 

 Northampton ; Allegheny. 

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