PLend.ph. 8. TYPHACEvE. Sl.Typha. 41 



Typha palustris minor, Rati Syn. 436, 3. 



Typha minor, Smith Fl. Br. 960. 



Typha angustifolia 0, Lin. S. P. 1378. 



Tvpha media, De Candolle Syn. FL Gull. 1806. 



Typba minima, TVilld. S. P. 4, 198 ; De Cand. S. F. G. 1807. 



Marslies ; perennial ; April, May. 



Culm 3 feet long, naked, sheathed at the base ; sheaths 

 large, split to the bottom into jags resembling leaves, flat, 

 broad, acuminate at the point ; leaves radical, as long as 

 the culm, setaceous, very narrow, deeply channelled, convex 

 on the back, the outer leaves shorter than the rest. 



IV. 9. CYPERACE^. De Candolle; Cjjpei-oidecB, Jussieu. 

 Flowers hermaphrodite, or unisexual, glumaceous, spiked; 

 glume^ of one spathelle, imbricate ; glumelle none, bristle- 

 shape, or 1 or 2 spathellules ; stamens 3, hypogynous ; 

 anthers terminal, affixed by its base, 2-ceUed ; ovary free, 

 1-seeded ; style 1 ; stigmata 2 or 3 ; akenium crustaceous, 

 bony or subdrupaceous, naked, or bristled, or covered with 

 a capsule perforated at top, formed of the spathellules 

 soldered together ; seed erect ; perisperm farinaceous ; cor- 

 adum very small near the hilum, sometimes external. — 

 Herb perennial, grasslike ; C7dm simple, round, or 3-sided, 

 without knotty joints ; leaves sheathing ; sheaths not slit 

 lengthways ; hractecB mostly sessile ; spathelle spiked ; lower 

 spathelles mostly empty. 



1. Spathelles imbricated all round ; fiowers unisexual ; 

 akenium inclosed in the hardened glumelle. 

 CaricecB. a. 

 Spathellules 2, soldered, inclosing the akenium ; 



stigmata two Carex. 32. 



Spathellules 2, soldered, inclosing the akenium; 



stigmata three Trasus. 33. 



Spathelkde 1, involute, inclosing the akenium ; 

 stigmata three Cobresia. 34. 



2. Glumes two-rowed ; flowers hermaphrodite ; 

 glumelles none, or bristle-like. Cyperacece. b. 

 Style not jointed, deciduous ; stamens 3 ; 



glumelle ; spikes umbelled Cyperus. 35. 



Style not jointed, deciduous ; stamens 3 ; 



glumelle ; spikes capitate Sch(ENUS. 36, 



Style not jointed, deciduous ; stamens 2 ; 

 glumelle ; akenium drupaceous , Cladium. 37. 



