ISCHEMUM. ^ ANDROPOGONEJE (AUCT. EDUARDO HACKEL). 251 
Culmi graciles, ascendentes v. erecti, 45—60 em. alti. Vaginz laxa, 
(excepta summa areta), nodis barba*is. Laminz anguste, pubescentes. 
Racemus teres, circ. 4 em. longus, rigidus, longe pedunculatus. 
(Hueusque ex Brownio Benthamioque, sequentia ex autopsia :) Arti- 
culi pedieellique ?/, spieule sequantes, subcontigui, erassissimi, spicu- 
lam crassitudine zquantes, apice recte disjungentes, dorso hemis- 
phserico-convexi, ventre planiusculo membrana hyalina clausi, inanes, 
secus costulas 2 fulvescenti-eiliati, ceterum scaberuli. Spiculz sessiles 
6—7 mm. long&, oblong&, inferne pallide virides, superne rufescen- 
tes, callo obtuso 1 mm. longo barba fulvescente spicula 3 plo breviori 
cincto; gluma I^ in ?/, inferioribus cartilaginea, superius chartacea, 
subtruneata, obtuse bidentata, margine superne anguste acuteque, 
inferne vix inflexa, carinis in '/, superiore glumæ membranaceo- 
alatis, dorso nitens, fusco-punetulato, superne scabra, intus obso- 
lete 5-nervis; II^ I*» subsuperans, membranacea, ovata, cymbifor- 
mis, acuminata, aristulam 1,5 mm. longam emittens, carina sinuata, 
scabra, infra apicem brevissime alata, 5-nervis, ciliolata; IIT P» 
subzquans, elliptico-laneeolata, acuta, membranacea, marginibus 
hyalinis implieatis glabris, obsolete 2-nervis; palea eam sequans, simil- 
lima, angustior, enervis; IV* quam Hè '/, brevior, ovata, hyalina, 
glabra, inferne 3-nervis, iios '/, usque in lacinias lanceolatas aeutas 
fissa, aristam emittens circ. 16 mm. longam columnä castaneä gla- 
berrimá subulam subsuperante; ejus palea glumam æquans, ovato- 
lanceolata hyalina, enervis, glabra; stigmata stylis longiora. Spieule 
pedicellate 4 mm. long, callo minute barbato, lanceolatze, glumis 
herbaceo-membranaceis; I™ obtusiuscula, altero margine anguste 
implicata, flexura subalata, glabra, 7-nervis; II? lanceolata, acuta, 
carinata, 3-nervis, reliqua 0. 
Australia, Queensland ad Endeavour River (J. Banks), 
Subgenus 4. CORRUGARIA. 
Racemus solitarius; spieulze omnes mutic®, gluma IV: in sessilibus 
1-nervi, in pedicellatis enervi; spieule pedicellatze biflorze, flore utro- 
que c! v. antheris hebetatis fere neutro. Articuli crassi, oblique dis- - 
jungentes, pedicelli brevissimi. — Ischemi genus cum Rottboelliis - 
quam arctissime conjungens, utroque fere eodem jure inserenda, 
habitu vero, pedicellarum et spieularum fabrica (preter glumam IV’ 
muticam), Ischemo semisagittato ita similis, ut vix dubitem quin ex 
Ischemi quadam specie huie affini originem ducat. 
