Alopecurus. gramine.e 485 



ALOPECURUS (L. Gen. N» 78. — Colobachne P. de B.). 



Spiculae uniflora hermaphrodit» in paiiiculam spiciformem vel 

 capitatam (^ensam dispositse. Glumae binse iiberae vel basi plus minus 

 ionge connatae subaequales naviculares carinatae. Flos sessilis. Glumella 

 membranacea glumas sub-equans obtusa vel oblique truncata saapius 

 marginibus basi connata dorso aristata,palea angusta uninervia saepe 

 nulla. Squamulae nullae, Stamina tria. Styli 2 sfcpe in unum basi 

 coaliti, stigmata elongata plumosa ex apice tlorisemergentia. Caryopsis 

 ovata vel oblonga a latere subcompressa macula hilari punctiformi. 

 — Herbse annuce vel perennes. — Palea in A. vaginato nonnullisque 

 affinibLis et in speciminibus simillimis adest vel deest, divisio generis 

 in sectiones Colobachne et Enalopecurus igitur non naturalis. 



• Annui. 



i. A. agrestis (L. Sp. 89) annuus, radice fibrosa,culmis erectis 

 superne scabriusculis, foliislsete viridibus glabris va^inis cylindricis, 

 panicula spiciformi cylindrica utrinque attenuata ramis 1-2 spiculas 

 gerentibus, glumis ad medium connatis lanceolatis sensim acutatis 

 carina anguste alatis et pubescentibus, glumella glumis ^equilonga 

 ovato-lauceolata prope basin aristata arisla glumis subduplo longiore, 

 palea nulla O- Engl. Bot. tab. 848. — Host Gram. HI, t. 12. — 

 Rchb. Germ. f. 473. — Trin. Gr. tab. 37. — A. purpurascens Link 

 Linn. XXVU, p. 400 (ex descriptione). 



Hab. in pascuis, cultis ssepius humidis, vineis totius ditionis a Graecia! 

 Macedonia (Friv!) ad Syriam littoralem et interiorem (BI ! Gaill I), Egyptum 

 in ditione Fayura! (Schw !), regionem Caucasicaml Mesopotamiam (Haussk!), 

 Persiam borealem (Szov!), australem in subalpinis (Haussk !), Affghaniam 

 (Griff !). 



/3 tonsus Blanche in litt. — Arisla brevis glumis inclusa. — A. 

 ccerulescens Steud. et Hochst in Fleisch. exs. 1827. — A. purpuras- 

 cens Link Linn. XVH, p. 400! 



Hab. in agris Smyraae (Fleisch I), Syria littorali ad Tripolin (BI !). 



Ar. Geogr. Europa niedia et aiistralis a DaniA et GothiA ad Rossiam me- 

 diam, Turkestania, Ah-ica borealis. Quoque in America boreali etNova Zelan- 

 di4. Anibi introdnctus? 



2. A.Creticus (Trin. Sp. Gram. I, tab. 41.— Spreng.N.Entd.II, 

 p, 45.) annuus, radice fibrosa, culmis cespitosis ascendenti-genicu- 

 latis, foliis glabris linearibus planis, vaginis apertis subdilatatis, 

 ligula oblonga, panicula spiciformi oblonga vel oblongo-cylindrica 

 ramis unispiculatis, glumis ad Vs connatis asperulis ovatis apice acu- 

 tiusculis et ad carinam iate alalis et ciliatis, glumella horizontaliter 

 truncata et subfimbriatasupra basin aristata arist^glumis duplo lon- 

 giore, palea nnlla O. — A. fialanscB Boiss. Mss. 



