EXPLANATION OF SOME OF THE TECHNICAL 



TEEMS AS APPLIED TO THE STRUCTURE 



OF GRASSES. 



Acuminate. — Tapering gradually to a point. 



Adnate. — Partially or wholly united. 



Amplexicaul. — Applied to sessile leaves, bracts or glumes, which 

 clasp the stem or rachis at their base. 



Androgynous. — Composed of both male and female florets. 



Appressed. — Lying flat against or together for the whole length. 



Articulate. — Jointed. 



Auricled. — "With rounded ear-like projections. 



Awn. — A bristle-like hair proceeding either from the summit or 

 from the back of a glume. 



Bract. — Applied usually to leaf-like organs situated between the 

 foliage leaves and the flowers. In grasses they are 

 usually the uppermost leaves surrounding the clusters 

 of spikelets or each separate spikelet, and are either 

 spathe-like, as in Apluda and Anthistiria, or setifornij as 

 Setaria and Pennisetum. 



Cleft. — Cut about half way down. 



Collateral. — Standing side by side. 



Confluent, — Blended into one, or passing by degrees the one into 

 the other. 



Connate.— Applied to pairs of leaves or bracts which are opposite 

 and amplexicaul. 



Dichotomous. — Forked in pairs. 



Digitate, — Applied to two or more terminal spikes radiating from 

 one point. 



Distichous. — Disposed in two vertical ranks. 



Dorsal. — Referring to the back or outer side of a glume. 



Fasciculate. — In clusters. 



Flowering glume. — The glume opposite to the pale, and which with 

 it encloses the true floret. 



Glumes. — Chaff-like bracts enclosing the florets of a spikelet. 



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