494 



CLVI. CYPERACE^ (cLARKE). 



l^Scleria. 



Nut reticulated or tubercled. 

 Stems not dilated at the base. 



Spikelets 1-4 in lax clusters, suberect 

 Spikelets 8-12 in dense clusters . 

 Stems dilated at the base into ovoid bulbs 

 Panicle manifestly compound. 

 Nut smooth. 



Spikelets ^-i in. long ... 

 Spikelets ^ in. long 

 Nut reticulated or tubercled. 



Spikelets mostly in clusters of 3-5 

 Spikelets many, solitary, some paired. 

 Panicle lax ; branches capillary 

 Panicle dense ; branches setaceous 



15. S. dregeajia. 



15. S. schweinfurthiana. 



17. S. hvlbifera. 



18. S. Rehinanni. 



ly. «S'. Wehvitschii. 



20. -S". Woodii. 



21. S. multispiculata. 



22. iS. poceoides. 



■WLithospermecB. Less slender. 

 Perennial 



Inflorescence very scattered ; bracts leaf-like. 

 . 23. <}>\ lithosperma. 



**SCLEEIA, — Monoecious spikelets none or very few. Hypogynous disc generally 

 conspicuous. — Mostly stouter plants than those of the subgenus Hypoporum, Bracts 

 similar to the leaves. 



fTessellatcB. Rhizoire or hardly any. (All the species, except S. gracillima, very 

 much alike.) 



Nut tessellated. 



Lowest axillary peduncle remote, much exserted, 

 capillary, flexuose 

 Nut \-\ in. long. Spikes undivided, of few 



spikelets ....... 24. S. clathrata. 



Nut y^^ in. long. Peduncles often divided, with 



many spikelets 28. ^S. nyasensis. 



Lowe-t axillary peduncle remote, scarcely exserted, 

 straight. 

 Stem smooth or very nearly so. Nut large. 



Nut ovoid ....... 25. S.foliosa. 



Nut cylindric-ellipsoid ..... 26. S. glatidiformis. 



Nut globose ...... 27. S. glohonux. 



Stem minutely retrorse scabrous. Nut smaller . 29. S. complanata. 

 Nut smooth. 



Stems medium-sized, not very slender. 



Nut broader tiian long, depressed globose . . 30. 5. schimperiana. 



Nut longer than broad. 



Disc with ovate minutely caudate lobes . . 31. S. 



Disc truncate, lobes hardly any . . . 32. -S". 



Stems, as the leaves and inflorescence, most slender 33. ^S" 



canaliculato- 



triquetra. 

 Hildebrandtii. 

 , gracillima. 



ffRhizome thick, creeping. All stout plants, with copious inflorescence. 

 Stems erect. 

 Nut smooth. 



Very stout, 3-6 ft. high, with large terminal dense 



panicle 34. -S". orgzoides. 



Partial axillary remote panicles present. 



Partial panicles linear or linear-oblong dense . 35. -S*. melanomphala. 

 Partial panicles pyramidal, open . . . 37. S. ovuligera. 



Nut with 40 longitudinal striations . . . 36. -S*. spicivformis. 



Stem rambling, 15 or 20 feet long often . . .38. S. Barteri. 



