144 VASCULAR PLANTS. 



1. Carex, L. 



Flowers diclinic. $ spikelets 1-flowered; 

 glume 1, external. ? spikelets 1-flowered with 

 2 glumes; the external like the $ ; internal 

 transformed into a utricle including the ovary. 



2f. leaves flattened; stem triquetrous; spike- 

 lets collected in diclinous, or androgynous 

 spikes. 



2. Fimbristylis, Vahl. 



Spikelets £ , go -flowered. Palets closely im- 

 bricate all round, the lowermost empty. Peri- 

 gonium 0. Style incrassate at the base, persis- 

 tent. 



%. leaves narrow; spikelets, if solitary, brac- 

 teate; if capitate or umbellate, involucrate. 



3. Isolepis, L. 



Spikelets $ , oo-flowered. Palets imbricate 

 all round, the lowermost empty. Perigonium 0. 

 Base of the style deciduous. 



2£. csespitose, slender. 



4. Scirpus, L- 



Spikelets $ , oo-flowered. Palets imbricate 

 all round, the lowermost empty. Perigonium 

 6-setous. Style articulate with its base. 



0. U. 



5. Eriophorum, L. 



Spikelets £ , oo-flowered. Palets imbricate 



