Cafabrdsa.} cvii. gramine.e. 539 



glumes unequal lanceolate rough at the keel, outer glumella 

 bifid with a subterminal long straight awn, inner one smaller 

 with a small stalk-like neuter floret at its base, anthers linear- 

 oblong. £J. B. t. 951. Apera Beauv. Anemagrostis Trin.: 

 Barn, Gr, t. 17. 



Rare, in sandy fields which are occasionally flooded, principally 

 about London: in Norfolk and Lancashire. ©. 6, 7. — A beau- 

 tiful grass, with very slender branches to its ample panicle, which 

 is wavy and glossy like silk, well named by old Parkinson " Gramen 

 agrorum vend spica,^* Awn many times longer than the spihelet, rough. 

 Inner glumella not much less than the outer; at its base is a little 

 neuter floret, resembling a pedicel destitute of flower, which has a 

 small tuft of hair on each side. 



L 



6. A. interrupta L. (dense-flowered silky B,^ ; panicle long 

 contracted narrow, branches half-whorled the lower ones remote, 

 glumes unequal lanceolate rough at the keel, outer glumella 

 bifid with a subterminal long straight awn, inner one smaller 

 with a small stalk-like neuter floret at its base, anthers roundish 

 oval. Apera Beauv : E. B. S. t. 2951. Anemagrostis Trin, 



Sandy pastures, rare. About Thetford. 0. 6, 7. — So very 

 closely allied to the last that Trinius at one time proposed to unite 

 them: they only differ by the spreading or contracted panicle, and 

 the linear -oblong or oval anthers, and agree in all the other cha- 

 racters. ^ 



** Spikelets 2 — ^-flowered : perfect florets 2, very rarely 3 ; 50/??^- 

 times solitary^ with 1 — 2 imperfect barren florets or a neuter 

 one which is as large as the perfect one or sometimes (in 

 Catabrosa, Molinia, and Melica) rudimentary/. (Tab. VI. 

 f. 14. VII. f. 15—22.) (Gen. 15—25.) 



15. Catabrosa Beauv'. Whorl-grass. (Tab. VI. f. 14.) 



Panicle spreading. Spikelets scarcely compressed, ovate, awn- 

 less, with 1 — 3 perfect florets and often 1 — 2 neuter ones. 

 Glumes 2, membranaceous, 1 -nerved, much shorter than the 

 spikelets, rounded on the back, very obtuse, lower one the 

 smaller, upper crenate or toothed at the end. Glumellas 2, 

 coriaceous, membranaceous only at the extremity, 3-ribbed, 

 truncate and erose at the end, nearly equal. Caryopsis free.— 

 Named from Karatpioaiq^ a gnawing ; from the erose extremity 

 of the glumes. 



1. C. aqdatica Beauv. (Water Whorl- grass) ; panicle with 



whorled patent branches, leaves broadly linear obtuse. — a. 



larger, spikelets 2— 3.flowered. Parn. Gr. t. 20. Aira L. : 



E. B, t. 1557. — /3. small, spikelets 1-flowered. Parn. Gr. 

 t. 102. 



Banks of rivers, and floating in pools of water. — jB. on the sea- 

 shore in the west of England and Scotland. ^. 5, 6. — This is 



A A 6 



