Pl.efid.ph. 9. CYPERACE^. 33. Trasus. 55 



e. BractecB leqfiike, amplexicaul ; spikes upright, 

 upper ones sessile, lower footstalked, male 2 or 3, 



Glumes acute ; 

 male spike 3-sided; female cylindrical . , ., T. riparius. 21. 



Glume of the male flower blunt, of the ieffiale 

 acute, awned ; spikes cylindrical . ., T. paludosus. 22. 



f. Bractece leajiike, sheathing ; spikes drooping, 

 upper ones sessile, lower Jootstalked, exserted, male 1. 



Fndt crowded, ovate, acute; 

 leaves broad T. pendiilus. 23. 



Fruit lax, lanceolate, 3-sided, ribbed ; 

 leaves narrower T. strigosus. 24, 



g. Bractece leajiike, sheathing ; fruit smooth ; 

 spikes footstalked, drooping. 



Female spike lax, filiform ; 

 fruit ovate, beak long T. sylvaticus. 25, 



Female spike ovate; 

 ^77^?^ ovate, 3-sided, pointed, smooth .... T. capillaris. 26. 



Female spike ovate; 

 fruit elliptic, compressed, beaked, edge rough. 



T. ustulatus. 27. 



h. BractecB leajiike, sheathing ; spikes upright, 

 footstalked, exserted. 



Fruit smooth , T. Icevigatus. 28. 



Fruit rough T. erectus. 2.9. 



i. BractecE leajiike, amplexicaul ; fruit smooth ; 

 spikes footstalked. 



Boot creeping ; female spike ovate ; 

 fruit elliptical, compressed T. limosus. 30. 



Boot creeping ; female spike cylindrical ; 

 fruit elliptical, 3-sided, roughish T. glauais. 31. 



Boot creeping ; female spike lax, fewflowered; 

 fruit obovate, obtuse, smooth T. rarijiorus. 32. 



Boot fibrous ; spikes manyflowered ; 

 fruit 3-sided, furrowed, beaked T. chhrostachyos. S3. 



Boot fibrous ; 

 fruit elliptical, inflated, obtuse T. pallescens. 34, 



