GRAMINA. 
119 
sheaths nearly smooth, acutely ancipitate, the uppermost one a little 
longer than its leaf ; Hgule more than twice as broad as long, obHquely 
truncate and obtuse-angled. Panicle erect, distichously unilateral, 
deltoid-triangular in flower and" fruit, or somewhat rhombic in fruit. 
Panicle-branches 2 to 5 at the lower nodes of the rachis, but usually 2 
or 3, rigid, spreading in flower and fruit, or ascending in fruit, bare of 
spikelets and unbranched at the base for about one-third to one-half 
their length, scabrous. Spikelets ovate-oblong, 3- to 6 -flowered, but 
usually 4- or 5-flowered. Glumes acute, both shorter than the lowest 
floret. Florets not connected at the base by araclmoid hairs. Lower pale 
Bubobtuse, glaucous-green, variegated ^vith pale purple and reddish, 
with rather narrow white scarious margins. 
Said by Smith to have been sent from Scotland to Mr. Fairbairn 
of Chelsea Garden, and also sent to himself from the garden of Mr. 
J. T^Iackay, who alleged that he had brought it from Ben Lawers and 
other Highland mountains, but no wild specimens are known to exist. 
Scotland? Perennial. Summer, Autumn. 
Plant growing in dense tufts producing a succession of ascending 
flowering stems 1 to 2 feet high. Leaves H to 3 inches long by 3^ to 
I inch ])road, very similar to those of Poa pratensis, var. sub-cairulea, 
but iritensely glaucous, or rather ca^sious, as there is a blue tinge in 
the white. " Panicle 1 to 4 inches long. Spikelets I to I inch long. 
Florets | inch long. 
T am indebted to Mr. T. ^loore for living specimens from Chelsea 
Garden of the plant from which the preceding description was taken. 
Tlierc are no wild specimens in Smith's herbarium; the grass so 
l!i1)elled from Ben Lawers I am informed by the Rev. W. W. Xew- 
l)old is not the same as the cultivated specimens. In the herbarium 
of the University of Edinburgh there is a Poa from Glen Lsla, For- 
farshire, collected by Dr. Balfour, which shows the nearest approach 
to I*, caisia of any wild specimens I have seen. 
P. ca'?ia groAvs very freely in lowland gardens, and s])rings up self- 
sown, while P. eu-glauca and P. Balfourii can with diliiculty be kept 
ali\-e in cultivation in the open ground. 
C,-r.:ou.< }fradow-Gra.^.<^: 
Si r-Si rrirs Ti.— Poa eu-glauca. 
Plate MDCGLX^'I. 
