103 



1)1 (wenosis , collihus aridissiinis m. Kaiscrstuhl, 

 pracsertim seciis lihenum ; e g : p. Limburg ; Alt- 

 brefsach cct, nec non am Kirchberg p. Nieder- 

 rothweil J^rerfiientissime. — Percnn. 7 — 9. 



Rad. rcpcns, lonjj^issima , gcniculis radicans. — sar- 

 mentis(iue longissimis supra lcrram prostralis. Culmus 

 ^ — ly^ pcd. simplcx vcl basi subramosus. Folia 

 glaucft , brevia , vaginis nudis. Lij,nilae loco pilorum 

 serics. Spicae l\ — 7, gracillimae, ob valvas dislantes 

 quasi scrratae, iy4 — 2 uncialcs, vioJaceae v. viridi — 

 purpurcocpie varicgjatac. Antlicrac cum stij^matibus pur- 

 purcac. (Rad. multo dulcior, magisquc resolventcs atque 

 apparicntcs vircs habet, quam rad, Tritici repentis, 

 idcoque ud usum mcdicum pracfercnda.) 



Trihits III. Ai^enacece. Spreng. 



Florcs paniculati. Spiculae solitariae rarius i-iiorac, 

 plerumque 2 -multiHorae. Valvulae 2 carinatae. Glu- 

 mae 1 consistentia fcre valvarum; inferior concava aut 

 carinata, aristata, superior picrumque bicarinata. Arista 

 fere semper dorsalis , goniculata, longissima. 



37. Arundo. Beauv. 



Cal. 3 — 7-florus, flosculis brevior. Val- 

 vulac lanceolatae , convcxe conipressae, ob 

 axis prolongationem subremotae. Flosculi 

 omnes remoti, inlimus mascuUis s. neuter, nu- 

 dus, sequentes hermaphroditi , pilis clistichis 

 axi insidcntibus , longissimis inclusi. Gluma 

 inferior ianceolato -subulata , apicem versus 

 involuto-angustata , apice integerrima ; supe- 

 rior bicarinata. Styli longi. Stigmata 

 villosa, subaspergilliformia, lateraliter exce- 

 dentia. Caryops. libera, corolla marcida 

 laxe obtecta. (Beauv. t. i3. f. 2.) 



