HORDEUM MURINUM. WALL BARLEY. 



HORDEUM Lin. Gen, PL Triandria Digynia. 



Cal. lateralis, bivalvis, uniflqrus, tern us. 



Ran Syn. Gen. 27. Herbje gramtnifolle, flore imperfecto culmiferje. 



HORDfeUM mur'mum flofculis lateralibus mafculis ariftatis, involucris intermediis ciliatis. Lin. Svfl. 

 Vegetab.p. 108. Sp. PL P . i 26. Fi. Suec, ».113. 



HORDEUM fpicis craffis, longe ariftatis, calycinis glumis ariftatis, Haller FUJI, n. 1536. 



HORDEUM mur'mum, Scopoli Fi. Cam, n, 1 241. 



GRAMEN hordeaceum minus et vulgare. Bauh. Pin. 8. 



HORDEUM fpufium vulgare. Parkin/on 11 47. 



GRAMEN fecalinum et fecale fylveftre. Ger. emac 73. Rati Syn. p. 391. Wild Rie or Rie-Grafs, 

 Wall-Barley, Way-Bennet. Hudfon. Fl. Angl. ed. 2. p. 56. Light/hot Fi. Scot. p. 108. 



RADIX annua, fibrofa, albida vel fubfufca. % ROOT annual, fibrous, whitim or of a brownifh colour. 



CULMI plures, pedales et fefquipedales, fuberecli, fo- | STALKS numerous, afoot or a foot and a half high, 

 lioii, baii procumbentes, infradi, geniculati, f: nearly upright, leafy, procumbent at the bafe, 



genicuiis majufcuiis, pallidioribus. | and crooked or broken, jointed, the joints ra- 



•$ ther large and paler than the ftalk. 



FOLIA palmaria in quibufdam etiam fex uncias longa, $■ LEAVES a hand's-breadth or in fome even fix inches in 

 duas vel tres linea's lata, fubglauca, mollipube | length, and two or three lines broad, fomewhat 



veftita, bafi appendiculis duabus albis, acu- % glaucous, and covered with a foft down, fur- 



minatis, ampleAicaulibus, inftructa ; membrana | niuhed at the bafe with two fmall, white, 



brevhTima, obtufa; vagina vix pubefcens. f pointed appendages, which embrace the ftalk ; 



I membrane very fhort and obtufe ; Jheath fcarcely 



^ downy. 



SPICiE palmares, et ultra, parum nutantes 5 pallide vi- % SPIKES a hand's-breadth or more in length, drooping a 

 rentes, compreffse, fpicis hordei diftichi haud | little, of a pale green colour, flat, and not 



ablimiles. % unlike thofe of common barley. 



CALYX: Involucrum hexaphyllum, triflorum, fo- | CALYX: an Involucrum of fix leaves, containing 

 liolis fetaceis, acuminatis, ariftis corolla! bre- % three flowers, the leaves running out to a long 



vioribus, fcabris, duobus intermediis bafi la- | briftly point, ihorter than the beards of the 



tioribus, eiliatis^ Jig. 1 . y corolla, the two intermediate ones broader at 



I the bafe than the others, and edged with hairs, 



FLOS intermedins hermaphroditus, laterales mafculi, \ FLOWER in the middle hermaphrodite, the fide ones 

 omnibus magnitudineet forma fimilibus-,^. 2. | males, all alike in fize and fhape, jig. 2. 



Flos Hermaphrod. % Hermaphrodite Flower. 



COROLLA bivalvis;, valvula exterior oblongo-ovata, | COROLLA of two valves, the outer valve oblong- 

 acuminata, obfolete trinervis, laevis, definens | ovate, with a long point, faintly three-ribbed, 



in ariftam biuncialem fcabram, Jig. 4. valvula | fmooth, terminating in a beard or awn, which 



interior lanceblata, plana, medio fulcata, apice £ is rough to the touch, Jig. 4. the inner valve 



emarginato-truncata, Jig. 3. ad bafin exteriorem % lanceolate, flat, with a groove, truncated at 



hujus valvular exfertur arifta recta longitudine | top, and flightly emarginate, Jig, 3, at the 



filamentorum, Jig. 8. t outer bafe of this valve arifes a ftraight awn 



I the length of the filaments, Jig. 8. 



NECTARIUM: Glumul^ duas, acuminata ad bafin ^NECTARY: two long-pointed, little Glumes, at the 

 germinis, fig. 7. | bafe of the germen, Jig. 7. 



STAMINA: Filamenta tria, capillaria, glumis co- ^STAMINA; three capillary Filaments, much fhorter 

 rollze multo breviora. Anthers parva?, e | than the glumes of tha corolla. Anthers 



flavo virefcentes, fig. 5. fmall, of a yellowiih green colour, Jig, 5. 



PISTILLUM: Germen ovatum, pubefcens. Styli fPISTILLUM: Germen ovate, downy. Styles two, 

 duo, reflexi, villofi, Jig. 6, reflexed, and villous, Jig. 6. 



Some of the graffes are noxious to the hufbandman in one way* and fome in another. We have been informed, 

 •on the moft refpedtable authority, that in the Ifle of Thanet this grafs is well known to the inn-keepers, who call 

 it Squirrel- tail Grafs; and find, that if horfes feed on it for fome time, •the beards or awns of the fpikes ftick into 

 their gums, and make them fo fore, that they are in danger of being ftarved. The gentleman, who related to me 

 this fact., informed me, that on the road he had a bill put into his hand, fignifying, that at fuch an inn travellers 

 might depend on having good hay for their cattle, without any mixture of Squirrel-tail Grafs. 



It is chiefly on the edges of paths, at the bottoms of walls, and on the borders of fields, that we find this 

 noxious grafs ; and in fuch fituations it is extremely common in the neighbourhood of London. Fortunately it is 

 feldom or never found in the body of paftures and meadows, and coniequently it rarely occurs in our hay. 



It continues to flower and produce feed during the greateft part of the fummer. 



We are carfully to diftinguifh it from the Hordeum pratenfe of Mr. Hudson, which Linn^us, contrary to th e 

 opinion of Ray, Vaillant, Haller, and other refpectable Botanifts, confiders only as a variety of theprefe nt 

 fpecies. 



