528 
lin. longis basi dilatata alhidis involuerato; spienlis dense 
aggregalis patentihus ovalis compressiusenlis 2—1", lin. 
long. S—3-loris; Norihus inferioribus (3—1) fertilibus, reli- 
qnis maseulis v. hermaphroditis imperfeetis; squamis char- 
taceo-memhranaceis suhrotumdo-ovatis eoneavis apicem versus 
ohtusum carimulatis, enerviis niveis, inferne ferrugineo-va- 
viis; squama- bracleante illis Noriferis simih sed hrevissime 
acntata; caryopsi parva depresso-orbieulata v. lato-avata 
turgide lenticulari obluse marginulata transversim undulato- 
vugosa ferruginescenli-ochracea (tardius fusca) mitidula ; 
röstro ahhreviato das: valde dilatata semilunalo, apie« 
acuto, memhrana alba obteeto; filamentis trihus latiusculis 
vum stylo longe persistentibus; stigmatihus exsertis ferımgi- 
nosis. 
Dichronema nivea Beklr. olim in mss. 
— D. diphylla Vorr. mss. (v. 8... — D. mieroce- 
phala? Beyrich herh. (in „America sept.“ leeta). -- Lind- 
heimer Fl. texana exsice. no. 718. 
Texas. Arkansas. 
3. R. pubera Beklr. 
Intense viridis; radiee filrosa eapillari; eulmis eaespi- 
tosis erectis filiformibus infirmis 4— 15 poll. ‚alt. obsolete 
triangulis glahris a hasi plerumgne ad medium foliatis; foliis 
herbaceis vemotis culmo plerumque hrevioribus planis hre- 
viter augustatis subtiliter .nervatis glahris apice marginihus 
spinuloso-seabris, raro eiliatis; spieulis 8—1, saepius suh- 
ternis, capitato-eontertis oblongis ohtusis ‚plurifloris 3 lin. 
longis; involusro 5—3-phyllo, foliolis patentissimis concolo- 
rato-viridibns, hasi ciliatis, inferioribus 4—1 poll. longis; 
squamis (saerpius membranaceis) ovato-lanceolatis ohtusis 
mutieis carinatis, nervo cariıfali prominente, pellueido-albi- 
. * 
