CHAPTEE VIL 



GRASSES GROUPED ACCORDING TO THEIR 

 FLOWERS AND INFLORESCENCES. 



I. Grasses with only one perfect flower in 



THE SPIKELET. 



(1) Inflorescence spikate^ 



A. Inflorescence a spike of simple spikelets. 

 Nardus stricta, L. A tough wiry tufted moor-grass, 



with setaceous leaves, secund spikelets with a single 

 rudimentary glume, and a stiff simple hairy style. 

 (Fig. 2.) 



The much rarer Mihora vcrna about three inches or so high, and 

 LepturiLS^ both with flat leaves, also come here. 



Certain superficial resemblances in the habit or inflorescence in 

 Festuca Myurus and rare forms like Spartina^ may occasionally 

 cause hesitation until the spikelets are examined. 



B. Spike with sessile or sub-sessile tufts of three or 

 more spikelets. 



{a) A spike of tufted awned spikelets, in triplets 



at each notch of the rachis, and one or two 



of each triplet barren. 



Hordeum. 



^ See note, p. 87. 



