88. GRAMINE.E. 189 



*2. A. AGRESTIS, L. Slender Fox-tail-grass. Stem erect, 

 12 18 in. high, rough above. Sheaths not loose. Spike slender, 

 of a purplish colour, attenuated at the apex. Glumes almost 

 smooth, united to the middle. Awn upwards of twice the length 

 of the glumella. 



Occasionally introduced with grass seed. Banks of Clyde below Govan. (E) 

 A. 511. 



3. A. GENTCULATUS, L. Floating Fox-tail-grass. Stems pro- 

 cumbent at the base, bent at a few joints (geniculated), smooth. 

 Sheaths smooth and striated, upper one inflated. Spike 1 2 in. 

 long, compact. Glumes united at the base, outer ones hairy on 

 the keel. Awn projecting half its length beyond the glumella. 

 Very common. Pools and marshes, or on dry places. (B) P. 58. 



3. PHL^UM. Cats-tail-grass. 



P. PRATENSE, L. Common C at' s-tail- grass, Timothy -grass. 

 Stem erect, 1 3 ft. high. Le. soft. Spike cylindrical, compact, 

 1 4. i n . long. Gl. truncate, with a bristle-like awn terminating 

 the ciliate mid-nerve or keel. Readily known by the spike being 

 harsh to the touch. 



Common. In meadows and pastures. (B) P. 610. 



4. ANTHOX!NTHUM. Vernal-grass. 



A. ODORATUM, L. Sweet-scented Vernal-grass. Stem slender, 

 round and polished, 8 12 in. high. Le. hairy at the base. Spike- 

 like panicle closely -flowered, interrupted below. Gl. acute, more 

 or less hairy, especially on the keels, large one 3-ribbed. Glu- 

 mellas of the perfect floret awnless ; odorous when drying. 

 Very common. Woods and pastures. (B) P. 6 10. 



5. PSAMMA. Sea-Reed. 



P. ARENARIA, R. & S. Common Sea-Reed, Marram, Mat-weed. 

 Rhizome creeping. Stem stiff, erect, 2 3 ft. high. Le. narrow, 

 involute, sharply pointed, stiff and glaucous. Panicle spike-like, 

 5 6 in. long, tapering to each end. Gl. compressed, stiff and 

 chaffy. Glumellas, each with a tuft of hairs at the base. 



Frequent. Sandy sea shores. (B) P. 7. Cumbrae, Bute, and Arran. 



6. PHALARIS. Canary -grass. 



* P. CANARIENSIS, L. Cultivated Canary-grass. Stem erect, 

 leafy, 1 2 ft. high. Panicle ovoid or globular, variegated with 

 green and white. Gl. remarkable for their winged keel. Glu- 

 mellas hardened and shining on the caryopsis when mature. 

 ' About manure heaps. Not native. A. 7. 



