137 



rough, and not easily observable. Stems sometimes branched. 

 Not distinct from P. nemoralis. 



31. Poa nemoralis. — Cheshire, June 7, 1827, (hedges and 

 woods, but rare.) — I perceive no difference between this and 

 P. glauca, as to the shape of the spikelet, and in both the 

 outer calyx-glume is 3-ribbed; nor is there any difference in 

 the florets, the outer valve in P, nemoralis being blunt as in 

 P. glauca. 



32. Festuca uniglumis. — Garden, June 11, 1827, the seeds 

 from Anglesea in 1825. — No styles visible. Stigmas much 

 branched, but not feathery. Germen bristly at the summit, 

 at first turbinate, afterwards much elongated. Stem 4-angled, 

 near the top. — By cultivation, this grass becomes very tall, 

 (more than 12 inches high,) and perfectly erect: in a wild 

 state, its stems are mostly decumbent. The description in 

 Eng. Ft. very good. 



33. Arundo Phragmites. — September 16, 1826. — Outer 

 glume of calyx brownish-purple, with several ribs: inner 3- 

 ribbed, and purple like the florets; lower ^ore^ (in a dwarf 

 specimen,) without any pistil, but with a nectary of 3 scales, 

 (the additional one smaller and opposite to the inner valve,) 

 the other florets have a nectary of two scales, which are large, 

 rounded, and a little dilated, sometimes very slightly notched. 

 Stamens between the nectary and pistil : hairs of the upper 

 florets in two opposite tufts, placed on the edges of the com- 

 mon stalk, immediately below the floret. 



34. Lolium perenne. — September, 1826. — Nectary of 2 

 ovate, acute scales, not cloven or concave, very fleshy below : 

 outer valve of the corolla 5-ribbed. 



35. Lolium temulentum. — Wales, June, 1826. — This and 

 L. arvense are but varieties of one species ; both are found, 

 with intermediate states, in the same field. In L. temulentum, 

 however, the stein is smooth as well as the sheath; this cir- 

 cumstance and the difference in the shape, size, and direction 

 of its awn, are the only characters visible. 



36. Hordeum murinum. — The calyx of the lateral flowers 

 very nearly resembles that of the central one. I distinguish 



