PEDICELED SPIKELETS 



27 



are villous (having soft curly hairs) on the lower 

 part of the midnerve and the marginal nerves and 



have a tuft of white cottony hairs at the 

 ^ base, but this pubescence is not found in 



all the species. 



In all the grasses mentioned so far, 



the spikelets are borne in panicles (see 



Fig. 10, A). Spikelets much 



like those of Panicularia (Fig. 



13) but borne in a raceme 



and having awned lemmas 



are found in Pleuropogon 



(shown in Fig. 10, B). In 



these spikelets the palea is 



crested or winged on the nerves 



(Fig. 15, showing a three quar- fig. u. Spike- 



ter view of a palea removed 



from the floret). 



Returning to Fig. 11, A, we 

 c^!^i}^\ note the midnerve of the lemma 



Spikelet of 



Panicularia exteudmg as an awn beyond the 

 ^^^ntrio- minutely toothed apex. The mid- 

 nerve and the two lateral nerves 

 as well are extended into awns in Triodia 

 flava (Fig. 16, the floret seen from the back) ; 

 the apex of the lemma is toothed and the 

 nerves are villous below. In Fig. 17 (floret ^'ewropoeon 

 of Cottea pappophoroides opened out and 

 seen from the back) the lemma is lobed and nine to 

 eleven of its many nerves are extended into awns. 



let of Poa pra- 



tensis. 



