22 51. .MJ:IASTOMACE;K. 



Inflorescence axillary. (4) 



( 4 ) Anthers 4, unequal, connectives not appendiculate A'/W//.s. 1 



Antlier 4, unequal, larger ones 2-lobed at the apex /iroJia. 5 



1. Osbeckia LINN. 

 Dichotomous Key to the Formosan Species. 



Flowers congested at the apex of the stem and usually afforded with a 



whirl of leafy bracts 0. chinensis. 



Flowers shortly pedicelled, without any wliirl of leafy bracts.... 0. scabernnta. 



Osbeckia chinensis Lrxx.; MATSUM. et HAY ATA Enum. PI. Formos. p. 145. 



HAH. Taito, Snibi, Gilan, Holisha, Senton. 



DJSTRIB. Japan, Loo-choo, Hongkong, China, India, Malaya, Australia. 



Osbeckia scaberrima HAYATA Materials for a Flora of Formosa, p. 115. 

 Branches strigose, cinerascent, straight, terete, slender, hairs strigose, 

 adpressed, strigoso-barbate at the apex of the branchlets. Leaves opposite, 

 elongato-obloug, or lanceolate-ovate, 4 cm. long, 13 mm. broad, obtusely acute 

 at the apex, rounded or acute at the base, quite entire, 5-nerved, glabrous 

 above only on the costa, otherwise adpressiugly strigose, hairs regularly ar- 

 ranged on areas between the nerves, but beset with stronger longer hairs 

 (1 mm. long) on marginal areoles, adpressedly ciliate on the margin, 

 beneath pallid, sparingly slightly strigose, but much more strigose on nerves, 

 petioles 4 mm. long, strigose. Flowers cymose, cymes 3-5-flowered, 2 cm. long. 

 Calyx-tube subglobose, 6 mm. long, strigose outside, lobes ovately triangular 

 acuminate, 5 mm. long, 2 1- mm. broad, strigose <>n v the middle, otherwise 

 glabrous, margin strigoso-ciliate, glabrous inside, long arista te between the 

 lobes, aristas very strong, tumid at the base. Petals rounded, margin ciliolate. 

 Stamens nearly 15, inserted 011 the tliroat of the calyx, mm. long, fila- 

 ments slightly complanate, 3^ mm. long, anthers linear, 2| mm. long, 

 ^ mm. broad, one-pored at the apex, connectives produced at the base, 

 articulated with filaments. Ovary half-inferior, 5-celled, hirsute at the apex, 

 style simple, 6 mm. long, truncate and stigmatic at the apex. 



Osbeckia aspvra HAYATA Fl. Mont. Formos. p. 97 (non BLUME). 



