29 



Frc 17. Osterdamia matrella (L.) Kuntze (Zoysia pungens Willd). KOREAN 

 LAWN GRASS. — a. A spikelet with stigmas protruding from near the apex; a', 

 a smaller spikelet; b, second glume; c, palea; d, stamens. 



17. OSTERDAMIA Neck., Elem. Bot. 3: 218. 1790. {Zoysia Willd. 1801.) 

 Spikelets subsessile or shortly pedicellate along the continuous rachis of the 

 main axis, 1-flowered, hermaphrodite. Empty glumes 1, strongly compressed, 

 keeled, awnless, coriaceous, inclosing the much smaller flowering glume. 

 Stamens, 3. Styles distinct; stigmas plumose. Grain included in the slightly 

 indurated outer glume, free. Creeping or stoloniferous grasses with rather 

 rigid, often sharp-pointed leaves, and slender, terminal spikes. 



Species 2 or 3, southern Asia, Mascarene Islands, Australia, and New Zealand. 

 One introduced under the name of " Korean lawn grass. " 



