t 



conformes i. e. flosculis proximis plerumque breviores vel eos 

 aequantes, saltern flosculum siipremum hand superantes ... 15 



Glumae ambeduae paleis valde dissimiles ac difformes, 

 nempe eis vel multo latiores vel multo longiores flosculosque 

 (plerumque 2 tantum, rarius plures) semper superantes atque 



plerumque omnino occultantes 71 



15. Paniculae rami solitarii vel semiverticillati, omnes spiculiferi Ki 

 Paniculae rami inferiores verticillati : verticilli 1—2 infimi 

 spiculis orbati (destituti), i. e. ad setas capillares reducti : 



Peri ball i a involucrata Cav. 

 IG. Palea inferior apice rofitii<hita y. triinrata, lobulata vel denti- 



culata 17 



Palea inferior apice plus minus (ittemidid, bifida, bicu- 

 spidata vel bidentata 25 



17. Palea inferior distincte (crebre) multinervis, rotundato-triloba 18 



Pa,lea inferior obsolete nervata vel subenervis, truncato- 

 denticulata 19 



18. Glumae demum patentissimae ; flosculi mutici facillime rum- 

 pentes s. soluliiles ac deeidui Molineria minuta Pari. 



Glumae erecto-patulae ; flosculi aristati, persistentes s. 

 tarde deeidui Molineria I en digéra Lag. 



1 9. Arista aut recta vel arcuata s. exeurva, aut nulla 20 



Arista geniculata ; folia capillaria 24 



20. Folia plana vel planiuscula supra scaberrima 21 



Folia setaceo-convoluta 23 



21. Arista paleam aequans vel vix superans . 22 



Arista paleam duplo circiter superans ; Deschampsia bothnica Wahlbg. 



22. Paniculae rami scaberrimi ; folia scaberrima ; Deschampsia caespitosa L 



Paniculae rami laeviusculi ; folia laeviuscula ; 



Deschampsia brevifolia fí. Br. 



23. Paniculae rami scaberrimi ; ligula tenuissime setaceo-elongata : 



Deschampsia media Gaiian. 

 Paniculae rami laeviusculi v. laeves ; ligula obtusa ; 



Deschampsia alpina L. 



24. Spiculae pediceUis longiores; ligula acuta.' Deschampsia discolor Thiiill. 



Spiculae pedicellis breviores vel aequilongae ; ligula obtusa : 



Deschampsia flexuosa L 



25. Palea inferior floris inferioris dorso baud aristata (arista dor- 



salis in flore inferiore nulla) Avena macra Stev. 



Palea inferior semper arista dorsali instructa 20 



26. Spiculae fere semper tantum 2-florae ; flos injcrior (typiee) 

 plerumque masculus , superior hermaphroditus : arista in 



