177 
POA STRICTA D. Don AND P. LEPTOSTACHYA D. Don. 
By A. B. Renpuz, M.A., D.Se. 
(Pare 452.) 
an article Se nag Descriptions of several New or Rare 
Sootiae Plants’ in the Memoirs of the Wernerian Natural age 
Society, vol. iii. (1821), David Don described two new species of 
Poa—P. stricta (p. 298) and P. leptostachya (p. 299). The aad 
were collected by his father Geo songs Don, and the descriptions 
‘‘drawn up an the original native specimens preserved in m 
father’s herbarium.” As thes species are not mentioned in our 
it 
British ‘‘ Floras,”’ and are marked with “quid?” in the Index 
Kewensis, the following account, baie accompanying plate, prepared 
from George Don’s original specimens, which are named in David 
Don’s hand, may be useful to ey bere in British grasses. 
The specimens will be found in the British Herbarium at the 
Natural History yee Be were purchased, with other speci- 
mens collected by George Don and contained in David Don's 
apo at the faa Society’s sale in 1863 
Poa stricta D. Don in Mem. Wern. Soc. iii. 298 (1821). The 
mereyiein is & ia tandotintion of Don’s account :— 
“9 cula ramosa, spiculis 3-floris leas glumis lanceolatis 
trinervibvus. subeequalibus mucronatis carinatis, paleis quinque- 
nervii is apice aa a flosculis basi villosis 
‘‘ Culmus erectus bipidalis [sic] gracilis teres glaber articulatus; 
folia radicalia anguste-liniaria [sic] glaberrima pallide viridia striata 
margine inermia, caulina brevia pungentia longe vaginantia, vagi- 
nis levibus striato sulcatis; ligula br i i ti 
lacerato-ciliata; panicula compacta 
pedicellisque spinuloso asperis, spiculi 3- -Hori conferti ovati, glume 
subequales lanceolat mucronate carinate (carina aspera) 
ia ciliate, pale ez nervie apice truncate margine SCarlose ; 
i basi villis longis retrofractis tecti. Affinis Poe pratensi, 
esa posterior videtur distincta, spiculos 4-flores, glumas ovato- 
lanceolatas, 5- -nervias, pales acutiusculas nec truncatas, folia 
latiora, spiclos majores e. 
ies was fsacieiad many years ago in pastures in 
8 
pauemeit: be the late Mr. G. Don of Forfar 
I added the following notes from examination of Don's 
t 
ype plant — leaves three, the sheaths much exceeding the blades ; 
uppermost blade shortest, 14 inch long, an e in half-width in 
and , 
its natural plicate condition; ligule } line long, sheath 54 in. ie 
j m. Leaves on 
stiffi 
longest 7 in. long, } li 
wid, wie branches Dg - ‘at the lower nodes 
apparently five branches from Pi gee of a shorter seco 
branch right at the base of the two lateral branches; median 
Journan or Borany.—Vor. 41. [Junez, 1908.) N 
