MONOCOTYU: DUNES. 231 



niembranacea, suba}(|uivalvis. Fcria/it/tii valcula inferior 

 cariiiata apice bidentata v. biseta, dorso (supra niedium) 

 aristata. Caryojms libera, exsulca, lateraliter compressa. 



Gramiiia ccBspifosa ; vaf>;inis Jongitudinalitcr fissis. Pani- 

 ciila sape coarcfala, aristis arcnato-pattdis. 



Obs. A Dcscbainj)sia differt lociistis ancipitibus, glumis 

 carinatis, periaiithii valvula iuferiore carinata apice attenuato 

 bidentato v. biseto, caryopside lateraliter compressa. Ab 

 Avenis ])lerisque glumis periauthiisque carinatis ; ab omnibus 

 caryopside exsulca et lateribus compressis. 



65. Trisetum SUBSPICATUM, Palis, agrost. p. 88. 

 Trisetum airoides, Boem. et Seh. spt. 2, p. (SiQ>, exclus. syn. 

 Wulfen et Host. Richardson in Franklin s journ. p. 731. 



Aira spicata, Linn. sp. pi. ed. 2, p. 95, jt. lapp. n. 47. 

 Flor. Dan. f. 228, mala. Gunn. norv. n. 422. WaJilenb. 

 lapp. p. o3. 



Aira subspicata.Zi/^//. si/st. nat.ed. 12, v. 2, p. 91. Willden. 

 sp.pl. 1,P' 377. Pers. syn. \,p 77. Zoey.pl. island, in 

 Olafs. reise 2, p. 234. Giesecke greenl. in Brewster s Edin. 

 encyclop. 



HIEROCHLOE. 



Hierochloe Gmel. sib. 1, p. 100. Br. prodr. Jlor. nov. 

 holl.p. 208. Trin. ayrost. p. 130. 



Hierocliloa et Toresia, Palis, ayrost. p. 62 et 63. 



Char. Gen. Gliima subaequivalvis,locustamtritioram [ccxciii 

 sequans. Perianthia bivalvia, lateralia mascula, triandra; 

 terminate hermaphroditum, diandrum. 



Obs. Relationem veram Anthoxanthi ad Hierochloem, in 

 prodr. flor. nov. lioll. p. 209, primum indicatam, optime 

 conflrmat planta Javanica intermediie structural a D. llors- 

 field detecta ; in hac enim periantliium lateraliam inferius 

 masculum bivalve, superiiis univalve, neutrum : terminate 

 liermaphroditum. llujus novi generis (Ataxia) habitus 

 potius est Anthoxanthi, quocum etiani gluma ina^quivalvi 

 quadrat. 



Cum Hierochloe charactcribus nonnuihs convemt Arthro- 



