g02 GRAMINE^ Poa^ 



nervos glabriuscula vel glabra. — Poa Attica Boiss. et Heidr. Diagn. 

 Ser. I, 13, p. 57. 



Hab. Athenis in Oliveto et ad Kephissum (^Heldrl). 



Ar. Geogr. Europa tota prsesertiin borealis et niedia, Sibiria, America 

 borealis. 



8. P. Aitchisoni, perennis, radice fibrosa breviter' repente ? cul- 

 mis gracilibus erectis oligopiiyllis superne nudis. foliis linearibus 

 planis aculis,culmeorum lamiria vagina sua brevioribus, ligula brevi- 

 ler ovala lacera, paniculae breviter triangulari-pyramidatae raraia 

 capillaribiis palentissimis binis inferne nudis, spiculis virentibus 

 purpureo-snlTusis oblongis laxiuscule 3-5-noris, glumis oblongis mem- 

 branacco-niarginatis inferiore acutiore subangustiore, axi glabra, glu- 

 mella obloiiga superne scariosa obtusa inlerne ad carinam et marginea 

 pilis brevibus crispis obsila nervis 5 prominulis %. 



Hab. in valle Kurrum Affghanise (Aitch. 405 et 497 !). 



Culmi cum paniculA sesquipollicari 8-10-pollicares, facies P. minoris vel 

 formaruin alpinarum P. 'pratensis. A P. minore dilfert llosculis lana non 

 coha-itMitibus, glumellae obtusae nec acutse nervis prominulis. P. pratensis 

 distat flosculis laua connexis, glumell4 acuta etc. Rhizoma ex speciminibua 

 incompletis breviter repens videtur. 



* * Glumelloe nervi laterales obsoleti. 



9. P. trivialis (L. Sp. 99) perennis, radice fibrosa, culmis elon- 

 gatis tereti-subcompressis superne sffipius scabris basi saepe arcuato- 

 ascendentibus radicantibus, foliis flaccidis linearibus planis, vaginis 

 saipius scabris, ligula oblonga acula, panicula? magnse ereclsp vel 

 apice initantis ramis scabris inferioribus subquinis, spiculis parvis 

 ovatis viridibus vel rubellis 3-4-tloris, lanugine pauca vel nulla. glu- 

 mis ina!(]u;dibus lanceolalis mucronatis, glumella ianceolata acul^ ad 

 carinain subsericea nervis lateralibus prominentibus %. Host Gram. 

 tab. G'2. — Rclib. Gerin. tab. 162. — P. Ilohmackeri Trin. in Hoh. 

 Talyscti. p. 15! 



Hab. in pratis et sylvaticis humidis, Grsecia et ejus insulae (Heldrl), Greta 

 CWeiss !), Macodonia et Thracia (Griseb ), Pontus Lazicus ad Djimil (Bal.), 

 Tauria, Cauca.^^us etTranscaucasia (Led. Hoh!), Persia bor. (Ky ! Bge !),Cyprua 

 (Sint!j, Syria liltoralis (Bl! Gaill !), Affghania (Grlff !). 



/3. umhrosa Bal.in Bull. Soc. Bot. XXI, p. 16.— Surculi sleriles 

 gracilcs elongati foliosi foliis subdistichis breviter ligulatis. 

 Hab. in humidis Ponti Lazici prope Rhize (Bal!). 

 Ar. Geogr. Europa onmis, Sibiria, Japonia, Africa borealis. 



10. P. coiupressa (L. Sp. 101) rhizomate repente stolonifero, 

 culmis aiiticipili-compressis basi procumbentibus vel geniculatis^ 

 foliis laliuscule lincaribus glaucis lievibus, ligula brevi truncata, pani- 

 culse erecloc oblongte compact;e ante et^posl anlhesin contract^ ramia 



