Agrosiis. GRAMiNEiE 515 



4. A. vulgaris (Wilh. Arr. p. 132) perennis, radice pins 

 minusve slolonifera, culmis erectis vel ascendentibus, foliis omnibua 

 jinearibus planis scabris, ligula brevissima Iruncata, paniculoe ovatffl 

 vel oblongiB purpurascentis vel violace{e ramis patentibus asperis, 

 glumis sabcequilongis obiongo-lanceolatis aculis superne ad carinam 

 scal)ris cjetprum laevibus, glumclla glumis subbreviore apice denti- 

 culala paleam duplo superanto ^ A. stolonifera L. ex parte. — A, 

 hispida Willd. 



Hab. in sylvaticis, pratis alpinis, Pontus Lazicus prope Rhize et Kliabackar 

 (Bal !) in pratis alpinis prope Djimil (Bal!), Caucasus (M. B.), Gaucasus orien- 

 talis in Dagheslania usqne ad 10000' (Rupr!), Georgia Gaucasica fHohenl), 

 vallis Merga sauk Arnienioe Turcicoe (Ky ! Suppl. 536 sub A. canind var !). 



/3. aristata. — Glumella dorso arista recta exserta obsita. 

 Hab. in alpinis Graeciai, Olympus Thessalus (Auch. 3052!). 

 Hiiiic species in editioribus Gaucasi orientalis sensim diminuta5-6-polIicaris 

 A. alpinam vel i-upestretn simulat. 



Ar. Geogr. Europa praesertim borealis et media, America borealis. 



5. A. Lazica (Bal. in Bull. Soc. Bot. Fr. XXI. p. 12 ex parte) 

 perennis cespitosa substolonifera, foliis surculorum sterilium angus- 

 tis convolutis, culmeis latioribus planis, iigula brevi ovata truncata, 

 culmis gracilibus pumilis inferne tanlum ramosis, paniculae parvae 

 contractcB anguste linearis subinterrupta3 ramis brevibus strictis, 

 glumis purpureis flavo-marginatis lanceolatis acutis Isevibus carini 

 scabridis, glumella glumis subbreviore sub medio dorso arista sub- 

 geniculata e glumis exsertaaucta, palea 2-8-plo breviore ^. 



Hal). ad rivulos in regione alpina Ponti Lazici supra Khabackar (Bal !), iu 

 nionlibus Saridagh, Borbalo, Antscliibala et Gudurdagh Gaucasi orientalis in 

 Daghestania et Ghewsuria 8000'-10000' (Rupr !). 



Culmi 3-8-pollicares, panicula pollicem longa 2 V* lineas lata. A formia 

 A. a/bce et vuUjaris foliis surculorum flhformibus convolutis, glumellaj arist& 

 elongata subgeniculata discedit. Gl. Balaasa loco citato formas venias enu- 

 merat quarum altera ad A. albam, altera ad Calamafjrostidem Balansce 

 spectat. 



6. A. Byzantina (Boiss. Diagn. Ser. I, 13, p. 46) perennis? 

 cespitosa, radice fibrosa, foliis anguste linearibus planiusculis multi- 

 nerviis ad nervos et margines scabris, ligula brevi ovata, paniculae 

 contractcT liueari-lanceolatse elongataj ramis strictis pediccllisque 

 brevibus scabris, glumis virentibus lauceolatis acutis subiucequalibus 

 ad carinfe apicem scabriusculis cceterum Irevibus, glumella glumis 

 tertia parte breviore obtusa subdenticulata mutica, palea triplo 

 breviore obtuse bidentatd ^. 



Hab. prope Byzantium (Noe 225 I). 



Pedalis, panicula 3-4 pollices longa. Facie aflinis A. canimB a qua foliis 

 etsi angustis tanien vix conv6Iutis et proesertim paleii non deficieute biden- 

 tata dillert. Specimina duo tantuni vidi et ulterius observanJa. 



