588 geaminEjB. [PhalariS. 



blossoiDj afterwards-, as previous to Aowenng, becoming coarctate. Glumes about 

 equal, very narrow and taper-pointed, rough at the baclc, with a green rib down 

 the centre of each. Corolla much sliorter than the calyx and more unequal, its 

 valves thin, white and membranous. Outer palea bifid at the point, with a rough 

 dorsal awn inserted nearly in the middle, and about as long as the tuft of hairs 

 that surround the base of the corolla, from which, being almost equally slender 

 and pale-coloured, it is not easy at first to distinguish it; inner palea much 

 smaller. Anthers yellowish. Stigmas simply branched. 



X. Phalaris, Linn. Canary-grass. 



"Panicle spiked or spreading. Spikelets laterally compressed. 

 Glumes 2, nearly equal, erect, navicular, membranaceous, longer 

 than the floret. Glumellas 2, awnless, glabrous or equally hairy, 

 at length hardened and investing the caryopsis. Neuter florets 

 1 — 3, rudimentary, sessile and scale-like."- — Br. Fl. 



1. P. arundinacea, L. Reed Canary-grass. Rihhand-grass. 

 'Gardener's Garters. " Panicle erect its branches j)atent, florets 

 crested secund, neuter florets consisting of 1 — 3 small hairy 

 valves."— £r. Fl. p. 518. E. B. t. 403. Host. Gram. Aust. ii. 

 25, t. 33. Digraphis arundinacea, Trin. 



By the side of rivers, ponds, pools and ditches; not un frequently. Fl. July, 

 August. 2f. 



E. Med. — In various parts of Sandown level. Willow-thicket between Mess- 

 ley farm and Langbridge. By the stream-side at Yaibridge, and by the bridge 

 at Alverston. [Near the sluice at Bradiug, A. G. More, Esq., Edrs.] 



W. Med. — By the Medina at Shide bridge. In the pond below Carisbrooke 

 castle ; also by the stream between Newbridge and Mill green. Abundant by the 

 mill-streams and ponds by Newport and Carisbrooke, 1845. 



W Glumes 2- or rarely 3-flowered. 



XI. Catabeosa, p. de Beauv. Whorl-grass. 



"Panicle spreading. Spikelets scarcely compressed, ovate, 

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

 Glumes 3, 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 3, coriaceous, 

 membranaceous only at the extremity, 3 -ribbed, truncated and 

 erose at the end, nearly equal. Caryopsis free." — Br. Fl. 



1. C. aquatica, Beauv. Water Whorl-grass. Panicle spread- 

 ing with whorled branches, leaves broadly linear obtuse flat, ligule 

 oblong. Br. Fl. p. 535. Parn. Gr. t. 20. Aira aquatica, /Sm. 

 E. Fl. i. p. 102. Find. Syn. p. 306. E. B. xxii. t. 1557. Curt. 

 Fl. Lmid. fasc. i. t. 5. Host. Qra/m. Aust. ii. 30, t. 41. 

 In shallow pools and ditches ; rather rare. Fl. May— July. 



Calamagrostis lancealala. Roth (Arundo Calamagrostis, L.), grows on the coast 

 apposite Ryde, at Goraer pond, and near Southampton. 



Phalaris Canariensis, L., is occasionally found, a plant or two here and there, 

 on waste ground, manure-heaps, &c., but it can hardly be said to be naturalized 

 with us, and hence is not a .proper s.pecies for insei'tion here. 



