766 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



DOUBTFUL SPECIES. 



Abutilon blandum Fenzl, Del. Sem. Hort. Vindob. 1830. Type from Los 

 Banos. 



Abutilon haenkeanum Presl, Rel. Haenk. 2: 115. 1836. Type from western 

 Mexico. 



5. WISSADULA Medic. Malvenfam. 24. 1787. 



Reference: R. E. Fries, Svensk. Vet. Akad. Handl. 43*: 1-95. 1908. 



Shrubs or herbs, with stellate pubescence ; leaves petiolate, entire or 

 dentate ; flowers axillary or in terminal panicles ; carpels usually 5, laterally 

 constricted, commonly 3-seeded. 



Leaves entire. 



Leaves glabrous above or strigose with simple hairs 1. W. excelsior. 



Leaves minutely stellate-pubescent on the upper surface. 



2. W. amplissima. 

 Leaves crenate-dentate. 



Stamen tube short, hirsute ; leaves not lobate ; carpels 3. 



Calyx tomentose, without long spreading hairs 3. W. tricarpellata. 



Calyx tomentose and long-pilose. 



Branches finely tomentulose, not pilose 4. W. cincta. 



Branches tomentulose and long-pilose. 



Seeds 4 in each carpel 5. W. gracilis. 



Seeds 3 in each carpel. 

 Leaves orbicular-cordate, abruptly acuminate ; petals 10 mm. long. 



6. W. wissaduloides. 



Leaves ovate, long-attenuate; petals 7 mm. long__7. W. hirsutiflora. 



Stamen tube elongate, glabrous ; leaves often lobate or angulate ; carpels 5. 



Branches tomentose with stellate glandular hairs, and with long simple 



hairs above 8. W. trilobata. 



Branches stellate-tomentose, sometimes with short glandular hairs above. 

 Calyx lobes 4 to 7 mm. long, acuminate ; carpels beaked. 



9. "W. holosericea. 

 Calyx lobes 1.5 mm. long, obtuse ; carpels not beaked 10. W. microcalyx. 



1. Wissadula excelsior (Cav.) Presl, Rel. Haenk. 2: 118. 1836. 

 Sida excelsior Cav. Monad. Diss. 27. pi. 5. f. 3. 1785. 



Veracruz and Chiapas. Cuba, Central America, and South America. 



Shrub ; leaves ovate or oblong-ovate, the upper ones often subsessile, long- 

 acuminate, stellate-pubescent beneath, the pubescence ferruginous along the 

 nerves; flowers in lax panicles; petals yellowish, 4 mm. long; carpels 5, 8 mm. 

 long, apiculate. 



2. Wissadula amplissima (L.) R. E. Fries, Svensk. Vet. Akad. Handl. 43*: 



48. 1908. 



Sida amplissima L. Sp. PI. 685. 1753. 



Wissadula mucronulata A. Gray in Torr. U. S. & Mex. Bound. Bot. 39. 1859. 



Abutilon mucronulatum A. Gray, Proc. Amer. Acad. 5: 175. 1862. 



Sinaloa to Tamaulipas, Morelos, and Oaxaca. Western Texas, Central 

 America, South America, and Africa. 



Shrub, 1.5 to 2.5 meters high ; leaves broadly cordate, 5 to 15 cm. long, 

 acuminate, densely stellate-tomentulose beneath ; flowers axillary or paniculate ; 

 petals yellow, 4 to 6 mm. long ; carpels 4 or 5, 6 to 10 mm. long, apiculate. 



