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- FlG . 14 .' ' Spike . 

 ter view of a palea removed let . f Poa 



x tensis. 



from the floret). 



Returning to Fig. 11, A, we 

 Sp!keiet 3 f note the midnerve of the lemma 

 extending as an awn beyond the 

 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 J 

 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. 



