AB. 7 1 . ORTHOGLADA laxa. 



rthoclada rariflora Beam* Agrost. yo. t, i4. f. ^. 

 Orthoclada laxa Beauv. L c. ( teste syn. Rich.) • 

 ira laxa Richard in Act. Soc. Hist. nat. Paris. p. 106. (teste specim.) 

 )a subumbellata jRoem. et Schult. Syst. 2. p. Syo. 



1 



Crescit in Guiana Gallica inque insula Portorico 



/• 



Badlx fibrosa; fibris filiformibus , fibrillis obsitis. Culmi erecti, simplices, foliati, inferne vagi- 

 nis nonnuUis aphyllls obtecti, teretes , striati, laeves, glabri^ nitiduli, bipedales; nodis imberbl- 

 bus. Folia oblongo-lanceolata, magis minusve obllqua, angustato-acutata, basi rotundata et sub- 

 inseqinlatera , in petiolum decurrentia, ii-i3-nervia, striata, membranacea , glabra, margine 



scabrluscula, subtus pallidiora nervoque medio prominente, 4~^~pc>ff 



-12 lineas lata. 



Petioli canaliculati, glabri, sesqtdpolllcares ; superiores et Inferiores breviores^ j-i-poUicares. 

 Vaginae nervoso-striatae , membranaceae , puberulae, superne a culmo solutae, aplce cmarginatae, 

 internodia superantes, 2-5-pollicares» Ligula brevissima, rotundata, cillata. Panicula simpliciter 

 ramosa; ramis semivertlcIUatis , subfastlglatls , fUiformlbus , tardlus patentissimis ?, rhachic[ue 

 glabris vel puberulis. Splculae pedicellatae , 2-5-florae, ovatae, compressae, basi subcallosoe el cum 

 pedlcello artlculatae; pedicellis ramullsque caplllaceis, elongatis, interdum subllexuosis , sca- 

 briusculls. Flores 2-5 in qualibet spicula, distantes, distichl^ termlnalis tabescens, parvus, 

 Hneari-subulatus, arcuatus, superne hispidulus; rellqul hermaphroditi, ex his inferior sessills ; 

 rhachis spiculae puberula, sub florlbus artlculata. Glumae duae, ovato-lanceolatae, acutatae, 

 S-nervIae, membranaceae , carlnatae, virides, nervis praesertlm medio hispido-scabris ; gluma 

 superior paulo latior et longlor, flore Infimoi brevior. Paleae duae, herbacese, virides; inferior 

 ovato-oblonga, acutata (in flore superiore hermaphrodito mucronato-subarlstata), carlnata, 

 qulnquenervia , viridis, glabra, carina hispidulo-scabra ; superior brevior, ovato-oblonga , apice 

 emarginata, lobis acutlusculis, glabra, compresso-navlcularis , dorso arcuata , binervla etblcari- 

 nata ibiqtie a basi ad medium rhachi spiculae adnata ; carinls superne prominentibus, hispidulo- 

 scabrls. Squamulae duae, laterales, subdolabriformes , apice emarglnato-subbilobas, carnoso- 

 membranaceae, hyaUnae, glabrae, aequales, ovario dimidio breviores , tardius in fructu subflabel- 

 lalo-nervosae. Stamina duo, ad latus interius ovarii hypogyna. Filamenta capillaceo-linearia, 

 glabra. Antherae linearl-oblongae, utrinqnie bifidae, lobis obtusiusculis, biloculares, fiiscae, sub- 

 aequales, glabrae, locuH sulco longitudinali exarati. PoUen immaturum. Ovarium sessile, sub- 

 conico-oblongum , glabrum, ad apicem, inter stylos, interne apiculatum. Styli duo, terminales, 

 breves. Stigmata plumosa; pilis albidis, hyalinls, simplicibus et ramosis?. Caryopsis obliciue 

 oblonga, embryoni parallele compressa, acuta, rudimentis stylorum coronata, basi subcuneato- 

 attenuata, castaneo-fusca, laevis, glabra, opaca, paleis clausis subchartaceis arcte obtecta, Hbera, 

 sesquiHneam longa. Pericarpium tenue , membranaceum , adhaerens. Semen substantia tenul 

 carnosluscula clnnamomeo-fusca vestitum. Albumen corneo ?-farinaceum. Embryo basi exte- 



albuminis agglutinatus ipsoque triplo quadruplove brevior, oblongus. Corculum tereti 



