BromUS. GRAMINEiE 649 



21. B. Matritensis (L. Sp. 114)annuus, culmis erectis gracili- 

 bus glahris, foliis linearibus planis acutis pubescentibus, ligul^ 

 ovato-oblonga iacera. paniculae erectse subsiraplicis oblongfe basi 

 attenuatfe ramis brevibus vel spiculnesequilongis erectis scabris infe- 

 rioribus 8-b-nis subnutantibus, spiculis glabris vel pubescenlibus 5- 

 12-floris, glumis anguste lanceolatis aculis inferiore angustiure et 

 subditnidio breviore, floribus dissitis, glumelld lanceolalo-subulata 

 carinata nervis laleralibua subobsoletis sub apice longe et acuti.ssime 

 bifido aristata, arista recta vel extrorsum incurva glumellam sub- 

 «equante ©. Host Gram. I, 1. 17. — B. polyslachyus D. G Fl. Fr. — 

 B. diandrus Curt. Lond. tab. 5. — B. .scaberrimus Ten. Fl. Nap, 

 tab. 105. 



Hab. in cultis,rupestribus Attic3e(Heldr!),Cretae (Raul!), ins. ChiosfOrph»), 

 Rhodi (Bal !), Macedoniffi,Thraciae et Bithynise (Griseb. Noe !), Anatolijeaus- 

 tralis (Bourg!),Syri3e littoralis (Gaiil! Bl I)et interioris ad Aleppo et Dainas- 

 cum(Gaill! Haussk I), Arabise petrese (Neerg!), Cypri (Sint!), Persia^ aus- 

 tralis (Ky. 148! Haus^k!), Taurise meridionalis (Stev.). 



/3. Deiilei. — Humilior, panicula ob ramos brevissimos obovato- 

 oblonga conferta, spiculae absque aristis 7-9 lineas tantum longae 

 flopculique minores. — B. rubens Desf. 111. p. 164, tab. 11, fig. t 

 iion L. 



Hab. in Egypto circa Alexandriam (Del.), in deserto iEgyptiaco-Arabico 

 variis locis (Schweinf. 28 ! 130 ! 253 ! et 4561). 



Inter B. Matritensem et B. rubentem = B. purpurascens Del. quasi inter- 

 medius sed priori tamen adnumerandus. 



Ar. Geogr. Britannia, Gallia australis, Lusitania, Hispania, Italia, Dalmatia, 

 Africa borealis, insulse Canarienses. 



22. B. rigidus (Roth in Rsem. Ann. 10, p. 21) annuus, culmis 

 firmis ssepius elatis superne pubescentibus, foliis linearibus planis 

 vaginisque pilosis, ligula oblonga lacera, paniculae oblongcT erectae 

 simplicis ramis velulinis brevibus erectis, spiculis 6 8-floris glabris 

 rarius pubesceutibus maximis, glumis in<equalibus lanceolatis acumi- 

 natis late membranaceis carina scabris,glumella lanceolala late mera- 

 branacea carinata et elevatim subquinquenervi sub apice subulato- 

 bidentato in aristam cirinatam validam scaberrimam rectam ea duplo 

 longiorem producla O. B. maxinms Desf. Fl. Atl. I, 95, tab. 25. — 

 B. maximus var. minor Boiss. Voy. Esp. — B. Matritensis Del. Eg. 

 ex Asch. 



Hab. in Atticse littoribus (Sprun I Heldr I), Creta ad Khania (Raul !), Egypto 

 ad Alexandriam (Ehr ! Letourn I), Oasi Dachel (Asch !), Transcaucasia ia 

 Iberia et ad mare Caspium (Eichw.) 



/3. Gussonei Parl. Fl. It. L p. 407. — Paniculse laxioris apice sub- 

 nutantis rami elongati. — B. Gussonei Parlat. Pl. rar. 



Hab. in Attica (Heldr!). Cypro (Rigol), SyriA littorali (Bl !). 



Ar Geogr. Britarmia, Gallia occidentaliset australis, Hispania, Italia, Dal- 

 matia, Africa borealis, insula^ Canarienses. 



