MONOCOTTLEDONES 217 



hypogy^oiis scales (lodiculcd, squamulce,' or glumellules) ; these 

 scales- also are occasionally absent. Stamens 1—6, usually 3 

 fila/ments capillary; anthers 2-celled, versatile. Ovary superior 

 1-celled, with a solitary ascending ovule ; stigmas feathery or 



Fig. 991. 



Fig. 992. 



Fig. 991. Diagram of a spikelet of the Oat (Avena). (From Le Maout.) gl, 

 gl. Two glumes, enclosing two lierm aphrodite flowers, anrl one, a, abortive. 

 b. The outer palea or flowering- glume, fc, b. The inner palea. p, p. Two 

 scales (sguamnlce or glumellules); the dotted curved line on the right 



marks the position of a third abortive scale, e. Stamens, c Ovary. 



Fig. 992. A spikelet (locusta) of the Oat (^Avena i^ativa'). ge. Outer glume. 

 gi. Inner glutae. pe. Outer palea or flowering glume of the fertile flower. 

 pi.. Inner palea of the same. e. Stamens, o. Ovary;, fa, and a. Abor- 

 tive flowers. Fig. 993. Fertile flower of the Oat, without the paleas. 



p. Lodicules. e. Stamens, o. Ovary, s, s. Feathery stigmas, Fig. 



994. One of the florets of a species of Meadow Grass {Poa praiensis). 



Fig. 995. One of the florets of the Hard Fescue G-rass (Festuca duriuscula). 



/'igf. 996. The embryo of the Oat, a. Lateral swelling, c. Cotyledon. 



r. Kadicle. /. Slit corresponding to the plumule. 



hairy. Fruit a caryopsis. Seed with mealy albumen ; embryo 

 lenticular, lying on one side of the base of the albumen. 



According to the views of some botanists, the paleae represent 



