750 CONTRIBUTIONS FROM THE NATIONAL, HERBARIUM. 



Carpels acute, narrowed to a conspicuous beak. 

 Carpels 5. 



Stems hirsute or hispid 28. A. thurberi. 



Stems finely stellate-pubescent. 

 Leaves broadly cordate-ovate, mostly 5 to 8 cm. wide. 



29. A. membranaceum. 



Leaves ovate or elliptic-ovate, 2 to 4 cm. wide 30. A. ellipticum. 



Carpels 6 or more. 



Stems pilose with long spreading hairs 31. A. giganteum. 



Stems stellate-tomentose or short-pilose. 

 Carpels (excluding the beaks) 6 to 7 mm. long; leaves green beneath. 



Leaves deeply cordate at base 32. A. umbellatum. 



Leaves rounded or subcordate at base 33. A. hemsleyanum. 



Carpels 1 cm. long or usually much longer. 

 Calyx and carpels pilose or hirsute. 



Petals 1 cm. long or less 27. A. xanti. 



Petals about 2 cm. long. 



Carpels long-hirsute, the beaks suberect 34. A. palmeri. 



Carpels short-hirsute, the beaks spreading. 



35. A. aurantiacum. 

 Calyx and carpels finely stellate-tomentose. 



Pedicels viscid-pubescent 36. A. holwayi. 



Pedicels not viscid-pubescent 37. A. dentatum. 



1. Abutilon striatum Dicks, in Lindl. Bot. Reg. 39. 1839. 

 T Abutilon venosum Lem. Fl. Serr. Jard. 2^: pi. 5. 1846. 



Specimens from Puebla have been seen by the writer, but perhaps all were 

 taken from cultivated plants. Native of Guatemala. 



Slender shrub, the branches glabrous; leaves 5 or 7-lobate, nearly glabrous, 

 the lobes long-acuminate, serrate; flowers axillary; petals about 4 cm. long, 

 orange veined with crimson or purple ; carpels about 1.5 cm. long. " Monacillo 

 amarillo" (Oaxaca, Durango, cultivated); " campanula " (Guatemala). 



Abutilon venosum, based upon cultivated plants of Mexican origin, is said 

 to have petals as much as 7 cm. long. 



2. Abutilon amplexifolium (DC.) Don, Hist. Dichl. PI. 1: 502. 1831. 

 Sida amplexifolia DC. Prodr. 1: 469. 1824. 



Jalisco to Veracruz. 



Stems loosely pilose; leaves ovate-cordate, usually with overlapping basal 

 lobes, long-acuminate, crenate-dentate, stellate-pilose beneath ; flowers mostly 

 paniculate, the petals 1.5 cm. long; carpels about 12, inflated, 1 cm. long, 

 hirtellous. 



3. Abutilon purpusii Standi., sp. nov. 



Veracruz and Chiapas; type from Barranca de Tenampa, Zacuapan, Vera- 

 cruz (Purpus 4332; U. S. Nat. Herb. no. 841806). 



Stems finely stellate-tomentose; leaves broadly cordate, 10 to 20 cm. long, 

 long-acuminate, deeply cordate at base, crenate-dentate, finely stellate-pubes- 

 cent, sparsely so above; flowers mostly axillary, the peduncles 5 to 11 cm. 

 long ; calyx about 2 cm. long, densely brown or j'ellowish-tomentose, the lobes 

 oval-ovate, mucronate; petals 3 cm. long or more; carpels 2.5 to 3 cm. long, 

 rounded at apex, thinly stellate-tomentose. 



4. Abutilon bakerianum Rose, Contr. U. S. Nat. Herb. 5: 133. pi. 11. 1897. 

 Oaxaca and Chiapas ; type from Tomellln Canyon, Oaxaca. 



Tree, 4.5 to 6 meters high ; leaves rounded-cordate, 3.5 to 15 cm. long, 

 abruptly short-acuminate, green above, minutely stellate-tomentose beneath ; 



