306 lewton: the Australian fugosias 



or subulate, sometimes reflexed or deciduous. Calyx 5-lobed or 5- 

 parted, conspicuously gland-dotted. Corolla large and showy, yellow 

 or pink, usually with a reddish-purple spot at the base of the petals. 

 Ovary 3- or 4-celled, with 3 or more ovules in each cell. Style undi- 

 vided, thickened upwards, slightly 3-lobed; stigmas sulcate. Capsule 

 woody, orbicular or ovate. Seeds woolly. 



The genus Notoxylinon may be distinguished from Hibiscus by the 

 undivided style and the presence of black glands; from Cienfuegosia 

 by the irregular distribution of the black glands and the 3-bracted invo- 

 lucre; from Gossypium by the absence of the black glands from the 

 cotyledons. 



The species of Notoxylinon may be recognized by means of the 



following key: 



Calyx truncate; lobes or teeth small. 



Plant glabrous; bracteoles persistent 1. N. pojndi folium. 



Plant more or less tomentose; bracteoles de- 

 ciduous. 



Leaves orbicular-ovate, acute entire; 



bracteoles subulate 2. N. thespesioides. 



Leaves rhomboid, 3-lobed; bracteoles 



setaceous 3. N.flaviflorum. 



Calyx 5-parted or deeply lobed ; lobes acuminate. 

 Plant glabrous or slightly tomentose. 



Leaves 3-lobed 4. A^. robinsonii. 



Leaves ovate, entire. 



Petioles less than 1 inch long 5. N. punctatum. 



Petioles 1 inch or more long 6. A'^. latifolium. 



Plant soft hairy or tomentose. 



Leaves entire or 3-lobed, densely short 



tomentose 7. N. australe. 



Leaves pedately 5-parted, coarsely stel- 

 late hairy 8. N. pedatum. 



1. Notoxylincn populifolium (Benth.) Lewton. 



Fugosia popuUfolia Benth. Fl. Austr. 1: 22L 1863. 



Gossypium populifolium F. von Muell. Fragm. Phyt. Austr. 9: 127. 



1875. 

 Hibiscus populifolius Kuntze, Rev. Gen. PI. 1: 69. 1891. 

 Cienfuegosia popuUfolia Hochr. Ann. Conserv. Jard. Bot. Geneve 



6: 57. 1902. 



2. Notoxylinon thespesioides (Benth.) Lewton. 



Hibiscus thespesioides R. Br. in herb. 



Fugosia thespesioides Benth. Fl. Austr. 1: 220. 1863. 



Gossypium thespesioides F. von Muell. Fragm. Phyt. Austr. 9: 127. 



1875. 

 Cienfuegosia thespesioides Hochr. Ann. Conserv. Jard. Bot. Geneve 



6: 58. 1902. 



