* 



252 STANCE DU 26 AVRIL 1880. 



arefactione subinvoluta, ad basini culmoruni et in fasciculis sterilibus 

 conferla, caulina superiora remola limbo quam in inferioribus breviore, 

 in extimo brevi vel brevissimo lineari-involuto ; vagince caulina} multi- 

 striatse, glabrae, rarius superne pills elongatis sparsis rigidulis pilose, 

 laeves, ore longe piloso-barbatWy arcta^teretes, exlinia longissima sa}pius 

 ante anlhesim panicula) basim amplectente el superne dilatata; ligula ad 

 pilos vaginam coronantes redacta. Paniciila erecta, 6-12 centim. longa, 

 ramosa, primum subcontracta demum effusa et oblong o-pyramidata, 

 rachi tenui glaberrimo, ramis capillaribus elongatis, erecto-patulis, 



a tertia parte inferiore ramulosis et spiculigeris, inferioribus 6-11, 



superioribus interdum 3-4 i'^r//ci7/ttf/s, rarius geminis vel solitariis, ra- 

 miilisspiculasl-3 gerentibus spicula terminali longiusciile pedicellata 

 laterali subsessili, pedicellis tenuissimis apice in nodum subincrassa- 

 tis. Spiculse minutse, 2* millini. longse, ante antbesim oblongo-Ian- 

 ceolata^j virentes demum virenti-aerese, a latere subcompressse, uniflorse 

 flore sessili bermapbrodito absque rudimento secundi floris. Glwnw 

 membranaceo-subcharlacea}, glabrae, laeves, valde inceqiialeSy acutiB^ 

 i«/^nor lineari-lanceolataglumellis multo angustior /]!or^ subtriplo bre- 

 vior, superior oblongo-lanceolata ghimellis subceqiiilonga glumellaj 

 inferiori subconformis et sub?cquilata concavo-canaliculata uninervia. 

 Glumellw glabrae laeves, subaequilongae, inferior membranacea oblongo- 

 lanceolata acuta mutica subnaviculari-concava uninervia, superior latior 

 membranacea inferne lierbacea oblonga infra apicem utrinque erosula 

 dorso bicarinata carinis laevibus glabris inter carinas dorso canaliculata 

 et saepius demum caryopsi accreta longitudinaliter in fundo canaliculi in 

 lacinias duas collaterales conformes fissa. Squamulae 2, minutissima?, 

 truncatse, glabrae. Stamina 3; antherae oblonga3, glumellis subaequi- 

 longae. Ovarium ovalo-oblongum, subsessile, glabrum ; stigmata 2, sub- 

 sessilia, plumosa. Caryopsis inter glumellas libera, oblonga^ glabra, 

 macula bilari basilar! minima punctiformi vix perspicua, pericarpio 

 laxo tenuiler membranaceo hyalino dorso demum longitudinaliter 

 fisso et fissura semini madefacto exitumprcebente. ^. Florifer et vix 

 fructifer 15 junio 1883 lectus. 



In Tunetia centrali ad extremitatera septentrionalem lacus salsi exsic- 

 cali Sebkha Sidi-el-Hani delectus (Miss. 1883) ubi in solo arenoso sal- 

 sugineo cum Filagine mareotica abunde crescit. 



Planta nostra, pedicellis apice in nodum subincrassatis, spiculis minutis 

 unifloris, gluma inferiore flore multo breviore, glumella inferiore mutica, 

 caryopsi inter glumellas laxe inclusa, pericarpio laxo tenuiter membra; 

 naceo madefacto fissura semini exitum praebente, ad genus Sporobolus 

 R. Br. (r///a sp. P. B., Steud.) referenda el ad gregem specierum gluma 

 superiora flore aequilonga donatarum (conf. Steud. Gram. 154) pertinet, 



