Qgg GRAMiNE^ Hwdeum. 



SuBTR. II[. ELYME.E. B^*». — SpiciilfB ad nodos rachidis bijiae vel 

 pluries collaterales. 



HORBEIM (L (icD. 98). 



Spiculfe iii racheos excisiiris teriiie uniflorre cmn riidimento 

 nosculi seciindi, laterales fin nostris sponlaneis) stipitatre mas- 

 ciihe vel nentrae, iniennedia herinaphrotiila sessilis vel slipitata. 

 Glumre binoe angiistse anticpe siibiinilaterales spiciihiruin trinm sub- 

 contigucp involuciMim dimidiiim simtilantcs. Gliimella et palea rachidi 

 opposit^e, illa concava intogra spiculffi intermedi;e in aristam pro- 

 ducta, palea membranacea bicarinata ad carinns scabra vel ciliolata. 

 SquamulfB binfe carnosulae sjepius ciliatae. Siamina tria. Sligmata 

 hina sessilia pliimosa lateraliter emergeiitia. Garyopsis ohlonga ven- 

 Ire concavo-canaliculala macula hilari lincari notata apice pilosa palese 

 sfepius adhjerens. — Herbse annufe vel perennes. 



• Annua. 



1. H. Ithaburense (Boiss. Diagn. Ser. [, 13, p. 70) aniiuum, 

 culmis erectis elalis, foliis tlaccidis linearibus plaiiis alleniiato-acu- 

 minatis. spica elongata compressa angus'a dislicha racliide fragili, 

 gpiculis lateralibiis stipilatis masculis muticis, iiitermedia sessili 

 hermiiphrodila aristata, glumis omuium a basi aiiguste lanceolata 

 subulatis dense ciliato-plumosis flosculis lateralibiis sest|uilongiori- 

 bus, glumella spicularum lateralium mutica, spicuhe iniermediae in 

 aristam validam rectam inferne planiusculam margine scabram ea 

 multoties longiorem producla O- H. Decaisae.l Hort. Par. — H. spon- 

 taneiim C. Koch Linn. XXI, p. 300, ex descript. 



Hab. in pa.scuis, deserlis, Arabia petroea Palestinatu versus ct mons Thabor 

 Palestinie (Boiss!), clrcu Daniascuui ((laill!) et inter Palmyram ut Hama 

 (Bl!), iu rupe-tribusad Orfa et d^sertu Sitidjar Assyriii^ (Hausski), ad Cor- 

 delio prope Sinyrnam (Ball), in Transcaucasiae prov. Schirvaii (C. Koch) et 

 inter Baku et Lenkoran (G. A Mey.), in Persia australi ad Pursei^oliii (I^y. 

 29U!) et ad Dalechi (Haussk !), Belutschia ad Quettah (Stocksl;. 



Gl. G. Koch hauc speciem typum spontaneum H. distichi esse suspioatur,. 

 ab eo ditTert spicaj rachide fragili, glumis saepius villosissimis glumellam 

 longe superantibus nec e?e a?quiIongis, ariiiti flosculi iatt^rmedii validiore et 

 longiore saipe semipedali. 



2. H murinum (Li Sp. 126) annuum, culmis pliiribus ascen- 

 dentibiis tola longiludine foliati.s, foliis planis laliuscule linearibus 

 flaccidis, spica siibcylindrica densa (iemtiin cernua rachide fragili, 

 spiculis lernis intermedia sessili raritis stipilata hermaphrodila, lale- 

 ralibiis pedicellalis masctilis vel ne.itris, omnibus subaequilati.s et 

 ffiqiiilongis,glumis a basi lanceolala ciliata subulato-aristatis glumella 



