Avena. gramine^ 543 



bifida lobis in aristas longiiisculas productis ad medium arista longa 

 inferne tortili aucta 0. Ic. Exp. Sc. Alg. tab. 41, fig. 2. 



Hab. in Attica aJ Hymetti cacuinen et insuia Lero Pharmacusarum 

 (Heldrl), in coUibus Lydite prope Sinyrnam (Bal. 9 I), Cilicia, ad Mersina 

 (Bal !j, in deserto Ghabur Mesopotamiae (Haussk !j. 



Ar. Geogr. Africa boreali.s. 



7. A. barbata (Brol. Fl. Lusit. I, 108) patule pubescens vel 

 velulina, pauicula subsecunda, spiculis bifloris, glumis subtequalibus 

 9-nerviis flores subsuperantibus, rhacbide infra florem inferiorem 

 glabraad basin cseterorum stipitemque rtosculi tabescentis pilosissima, 

 flore utroque aristato. glumella in callura obtusiusculum oblonguni 

 cicatrice oblongo-lineari exculptum attenuata a basi ad medium pilis 

 fuscis obsita apice bifida et longe biaristata dorso medio arista longa 

 inferne torlili obsita Q. A. hirsuta Roth Cat. III. 19. — Webb Phyt. 

 Can. tab. 247. — A. hirtula Lag. Gen. et Sp. 50. — A. atherantha 

 Presl Cyp. .SO. 



Hab. inter segetes, in collinis siccis fere totius ditionis, Attica in Hymetto 

 (Heldr!), Macedonia et Thracia (Griseb!), Byzantium (Cosson!), Rhodus 

 (Bourg !), Cyprus (Ky !), Pamphylia (Bourg !), Syria littoralis (Bl !) et interior 

 (Gaill!), Arabia petrea (Schimp. 277 !), Tauria (Stev.) Iberia et ditio Talysch 

 (C. A. Mey ! Hohen !). 



Ar. Geogr. Regio mediterranea Europse et Africae borealis, insulae Cana- 

 rienses et Azoricte, Abyssinia, Chili (an introducta?). 



8. A. Wiestii (Steud. Gram. p. 231) patule pilosula, panicula 

 secunda, spiculis bifloris abbreviatis, glumis <Equalibus flosculos 

 aequantibus septemnerviis, glumella in callum brevem obtusum cica- 

 trice ovala exculplum attenuata tota longitudine pilosa apice bifida 

 lobis longe setaceo-aristatis medio dorso arista duplo longiore lenui 

 inferne conlorla obsita O. 



Hab. in Egypto prope Gahiram (Wiest.), Deir et Tin prope Cahiram 

 (Barbey!), ad Salehieh (Schw!), deserto ArabitB petreaj versus Palestinam 

 (Boiss!), in deserto inter Bassorah et Bagdad (Haussk !). 



Afliinis A. barhatm differt .■^picuUs abbreviatis, glumis septemfloris, glu- 

 mellis fere ad apicem usque nec ad medium barbatis rnulto minoribus 

 (5 lineas tantum longis), calli cicatrice ovato-oblonga nec lineari. 



9. A. fatua (L. Sp. 118) panicula jequali patenle, spiculis 2-3- 

 floris, floribus omnibus aristalis, glumis subiequalibus flores paulo 

 superantibus, rachide slipitequc floris tabescentis pilosis, glumella in 

 callumbrevem obtusum cicalrice oblonga vel ovata exaratum setoso- 

 pilosum attenuata a basi ad medium setoso-pilosa apice denlato-bifida 

 medio dorso arista longa valida infernc tortili aucta ©. Sehrcb. 

 Gram. t. 15. — Ilost Gram. tab. 58.— A. trichophijlla C. Koch Linn. 

 XXI, p. 393 ex deseript. — A. sterilis Del. Eg. ex Asch. non L. 



Hab. in cultis Grfieci;e (Sibth.), Macedoniai (BMv,), Tauri» (Stev.), prov. 

 Gaucasicarum (Ledeb. Hoh !), CilicicC (Per!), Arabise petreJB (Auch. 2924!) 



