Tragia. 



CXXII. EUPIIORBIACE^ (pRAIN). 



965 



casually geminate low down ; leaves sessile or 



very shortly petioled, lanceolate ; stems erect. 



Leaves densely pilose on both surfaces ; male 



racemes 4 in. long or under 

 Leaves shoitly setose on the nerves only; male 

 racemes 6 in. long or longer 

 Male flowers in 3-flowered glomerules or cymules. 

 Leaves sessile or very shortly petioled j stems 

 erect or suberect. 

 Leaves ovate, shallow-coi'date ; hairs on stem 

 retrorse ...... 



Leaves lanceolate, subhastate-auriculate ; 

 hairs on stem ascending 

 Leaves distinctly to long petioled, cordate; 

 stems long, slender, twining. 

 Leaves softly puberulons on nerves and 



petioles ; male sepals puberulous . 

 Leaves harshly reti'orsely hispid on nerves 

 and petioles; male flowers glabrous, twice 

 as large as in T. mitis . 

 Kacemes androgynous oi*, if casually l-sexual, the 

 plants polygamous. 

 *Female calyx 6-partite, segments usually more or 

 less distinctly 2-seriate. 

 fFemale calyx-segments entire or subentire. 

 Male flowers mostly in 3-flowered glomerules 

 or cymules ; racemes 6 in. long or longer ; 

 bracts lanceolate, similar in both sexes; 

 female calyx-segments little accrescent, 

 not narrowed to a claw ; stems short, 

 erect, tufted ..... 



Male flowers solitary to their bracts; racemes 

 under 1 in. long ; male bi'acts spathulate, 

 female larger, 3-lobed; female calyx- 

 segments distinctly accrescent, ungui- 

 culate ; stems long, slender, twining. 

 Narrow claw of female calyx-segments not 

 exceeding the terminal laminula. 

 Leaves pubescent; laminula of calyx 

 segments wide, suborbicular, obtuse 

 Leaves glabrous; laminula of calyx- 

 segments narrow, oblong, subacute 

 Narrow claw of female calyx-segments 

 twice as long as the terminal laminula; 

 laminula either always entire or alter- 

 nately entire and 1-toothed at its base 

 tfFemale calyx-segments distinctly lobulate on 

 each side. 

 Styles united throughout their length in a 

 hollow column ; stems slender, twining. 

 Style-column narrowly funnel-shaped ; 

 female bracts subreniform with a 

 closely sharply toothed margin . 

 Style-column widely pyriform or sub- 

 globose, at first as large as the ovary ; 



32. 



33. 



14. 



23. 



T. Schweinfuithii. 

 T. akwapimensii. 



T. Descampsii. 

 T. lukqfuensis. 



IS. T. mitis. 



. 19. T. hongolana. 



2. T.fasciculata. 



3. 



T. spathulaia. 

 T. polygonoides. 



5. T. laminularis. 



9. T. natalensis. 



