Trisetum. gramine^ 537 



longe superante, palea subbreviore angusle lineari profunde bifida 

 O. T. lineare Boiss. Diagn. Ser. 1, 13, p. 49. — T.arenarmm Labill. 

 Dec. 10, t. 7. — T. Trisetaria R. et Scb. — Trisetaria linearis Fovsk. 

 Eg. 60. Del. Fl. Eg. tab. 12, f. 3. 



Hab. in arena mobili Syriae littoralis (Labill.), circa Berythum (Bl 1), 

 Arabia petrea (Boiss!), Egyptus ad Alexandriam et Roseltam(Ehrenb I Del.), 

 ad Mandara prope Alexandriam (Let. IGl!). 



Pedale et interdum sesquipedale, spica 3-6 pollices longa 4 lineas circiter 

 lata, glumae 3 V» lineas longse, glumella cum aristA 6-7 lineas longa, ovarium 

 anguste lineare. Planta^.^rosi/Se^s ob spiculas interdum subunifloras saepe 

 adnumerata, sed flosculi fertiles bini (ut in iconibus citatis et speeiminibus 

 Ehrenbergianis raanifestum est)et nulla nota eam a Triseto distinguit. 



* * Perennia 



10. T. flavescens (L. Sp. 118 sub Avend) perenne cespitosum 

 subrepens, culniis elatis, foliis linearibus planis margine asperis 

 vaginisque iiiferioribus plus minusve pubesceutibus, ligula brevi 

 truncata, panicula composila laxa oblongo-cylindrica lobulata patenti 

 dein contracta ramis tenuibus asperis flexuosis, spiculis flavidis 2-3- 

 floris,glumainferioreuninervibreviore et multoangustiore, superiore 

 trinervi oblongu-lanceolata supra mcdium attenuato-acuminata, axi 

 pilis floribus multo brevioribus obsito, glumella apice breviler biseta 

 supra medium dorsum arista geniculata ea longiore obsita 2[. T. 

 flavescGKS P. de B. Rchb, Germ. (ig. 204 et 205. — T. spiendens 

 Presl Gram. Sic. I, p. 80. 



Hab. in pratis fere semper in regione montana et alpind,Graecia in montibus 

 Delphi Eubetp. et CEta 4-6500' (Heldr!), Parnassiis (Orph !), montes Macedo- 

 niae 250U'-50UO' (Griseb.), Byzantii ad monteni gigantis(Post !j, mons Argsens 

 Cappadociaj 7-81)00' (Bal!), Pontus Lazicus 6000- (Ball), Gaucasus 6-9000' 

 (Led. Ruprl), Armenia Rossica (Gh. Koch), montes Talysch (Hoh.). 



Ar. Geogr. Europa media et australis a SueciA ad Rossiam mediam, Sibiria 

 tota, Africa borealis in montanis 



11. T Laconicum (Boiss. et Orph. Diagn. Ser. II, 4, p. 129) 

 perenne stoloniferum, culmis elalis, foliis planis ilineari-Ianceo- 

 latis latiusculis acutis firmis vaginisque pilis brevibus patulo- 

 deflexis hirtis, ligula brevi truncala lacera, vaginffi ore auriculato, 

 panicula} compositoc contractai oblongo-Ianceolatte ramis brevibus 

 striclis asperis, spiculis stramineis trifloris cum pedicello sessili plu- 

 moso, glumis lanceolatis acuminatis inferiore uninervi breviore et 

 fcre dimidio angustiore superiore basi trinervi superne sensim atte- 

 nuata. axi pilis flosculos dimidios cequantibus stipato, glumella apice 

 obsolete bidentata ad quartam parlem superiorem arista geniculata 

 scsquilongiore obsila. 



Hab. in monte Malevo Laconia; prope Vrancopigadou (Orph I). 



Bipedale, panicula 5-6-polIidaris, spicuhe paulo majores eis T. flavescentis 



