208 XXI. MALYACE.E. [UllhcUS. 



r 

 I 



Flowers usually large, the petals almost ahvays marked witli a deeper colom^ 

 at the base. Filaments usually short and numerous^ crowded along the 

 greater part of the elongated staminal column, rarely elongated, fewer and 

 placed close round the top of the short column. Bracteoles usually persistent, 

 but in a few species so deciduous as only to be seen on the very young buds. 



A very large gcnuSj widely dispersed over the tropical regions of the globe, a few extend- 

 ing into more temperate chinates both in the northern and southern hemispheres. Of the 

 Australian species lour are generally distributed over E. India and Africa; of three others 

 belonging to the section Abelmosclrus, one is found in the Indian Peninsnla, another is cul- 

 livated, if not wild, in the Indian Archipelago, the third is nearly allied to a corresponding 

 E. Indian species, but in some respects distinct, an eighth species, of the section Pantum, 

 is a coramou maritime tropical tree; the remaining 18 are all endemic. 



§ 1. Bracteoles free (sometimes very decidaovsj. Calyx h -toothed, sjilitting ojjCU on 

 one side and deciduous. Tall annuals. (Abclraoschus, Medik,) 



Glabrous or the inflorescence tomentose. Bracteoles small, falling 



off from the young bad. Mowers white \, H.ficuhieits. 



Hispid. Bracteoles 8- to 12, linear, persistent. Flowers red . 2. H. rhodopetalus. 



Glabrous or slightly setose. Bracteoles 5, broad-lanceolate^ per- 

 sistent ♦ . . 3. iT". ManihoL 



§ 2. Bracteoles free. Calyx sliorthj ^dohed, inflated. Herb 

 icith deeply lohed leaves, (Trionum, Medlk.) 4. //. trionum, 



% 3. Bracteoles free. Calyx deeply ^-lobed, the lobes \-or Z-nerved, without thlclcened 

 margins. Seeds bordered or covered by long woolly hairs. Low or slender shrnhs or an- 

 dershruhs. (Bombicella, DC) 



Staminal tube short with long filaments round the summit , . 5. iZ". hracliysiphomus. 

 Staminal tube slender, the short filaments extending to the middle 

 or lower. 



Plant loosely scabrous-hispid. Leaves deeply divided . . • 6. H.Druwmondii. 

 Plant densely and rigidly velvety-tomentose. Leaves ovate or 



lanceolate, mostly undivided. Bracteoles small , . • , 7. //. microchlienns. 

 Plant closely and densely tomentose. Leaves orbicular, mostly 



broadly 3-lobed . 8. JT. Pinouianus. 



§ -l. Bracteoles free. Calyx deeply ^-lobed, the lobes with a central nerve and thickened 

 nerve-like margins. Seeds glahrotis. Tall herbs or shrubs, often more or less armed ivith 

 short prickles (except the last two sj^eciesj. 



Herb, glabrous or with scattered hairs. Calyx ribs ciliate. 



Flowers white or pink 9. //. radlatus. 



Tall shrubs, glabrous or with scattered bairs. 



Flowers axillary, without bracts under the pedicels. 



Flowers yellow, (^alyx ciliate or setose 10. ^. divaricalus. 



Flower:* white. Calyx densely tomentose \\, H. hclerophylhiS^ 



Flowers in a terminal raceme, with a trifid bract under each 



pedicel. Calyx densely hirsute 12. JT . dicer si foVm^i' 



Tall shrub, densely velvrty-totncntose or villous. Flowers large, 



pink. C:dyx densely hirsute '. 13. //. splendens. 



Tomentose or densely villous shrubs, with out •prickles. Calyx 

 tomentose or villous. 



Flowers 1 J to 2 in. long 14. //. zonatus. 



Flowers about \ in. long 15. //. Coatesii, 



§ 5. Bracteoles free. Calyx deeply ^-lobed, the lobes 1- or Z-nerved, without thickened 

 margins. Seeds glabrous or shortly pubescetit. 



Low or slender shrubs or undershrubs, glabrous, scabrous-pnbes- 

 cent or bristly hispid. 

 Leaves undivided. 



Scabrous -pubescent. Leaves ovate danceolatc or oblong . . 16. H. leptocladus. 



