240 Vermischte neue Diagnosen. 
attenuata, e spiculis fertilibus 4—5 constans, adjectis in basi spiculis 
sterilibus 3 parvis v. minutis, rhacheos articuli subeuryati sursum modice 
dilatati dorso complanati, ventre concavi, plus minus scabri, spicula ad- 
jacente plus minusve breviores. Spiculae fertiles ovato-oblongae (cire. 
12 mm lg., 4 mm It.), 4-florae, floribus 2 inferioribus fertilibus, superiori- 
bus sterilibus, decrescentibus, viridulae. Glumae steriles subaequales, 
2/3—3/, spiculae aequantes, obovato-oblongae, circ. 7 mm lg., sinuato- 
"bidentatae, dentibus triangularibus acutis v. acutiusculis in spicula termi- 
nali interdum (altero v. ambis) in aristam brevem latiusculam productis, 
inter dentes interdum denticulum minutum exhibentes, dorso elevato 
7-nervis, nervis aculeolato-scaberrimis. Glumae fertiles oblongae, retusae, 
bidentatae, dente altero nervum medium excipiente plerumque in mucro- 
nulum crassum obtusiusculum producto, altero depresso-triangulari, inier- 
dum tertio rotundato aucto, ceterum muticae, 5-nerves, tota superficie 
minute scabro-punctatae, Palea glumam fertilem aequans, oblonga, obtuse 
bidentata, carinis .setuloso-ciliolata. Lodiculae ciliatae. Ovarium apice 
hispidulum. Spica cum . omnibus spiculis fertilibus demum caduca, 
Spieulis sterilibus in culmo manentibus. 
Patria ignota, introductum in Scotia prope Edinburgh (Slateford 
et Leith Docks), invenit J. Fraser. A 
Affinis Tritico mutico (Aegilopi muticae Boiss.) quod differt a nostro 
spica elongata gracili multispiculata, internodiis spicula adjacente longiori- 
bus, spieulis minoribus angustioribus, oblongis, glumis sterilibus vix di- 
midiam spiculam aequantibus apice dilatatis obscure sinuato-denticulatis, 
glumis fertilibus obtusissimis subintegris, 
358. Arnica aspera Greene in Ottawa Nat. XV 1902), p. 281. 
Stems clustered, often 2 feet high, equably leafy to the corymbose 
summit, loosely hirsute, more strongly and quite retrorsely so toward 
"the base: leaves about 2 inches long, ovate-lanceolate, sessile by à broad 
base, the upper longer, the lower shorter than the internodes, rough- 
hairy on both faces, saliently callous-dentate: peduncles several, slender; 
involueres small for the plant, campanulate, their bracts uniserial, hispi- 
dulous with pustulate hairs; rays very obtuse and only minutely triden- 
tate; disk-corollas with very short tube and rather longer limb about 
equally and very sparsely setose-hairy: achenes setose-hairy; pappus 
tawny, subplumose. q : ; 
The type of this species.is a plant found by myself on Mt. Rainier, 
19 Aug. 1889, and then supposed to be A. amplexicaulis, which I have 
how for some time known to be a very different’ plant. A. aspera has 
also been collected by Mr. Piper at Snoqualmie Falls, Washington, 
and again in the Olympie Mountains. Mr. M. W. Gorman obtained it 
in 1897 among his plants of the Washington Forest Reserve. 
