40 
Herba sesqui-usque pluripollicaris ut videtur sspe biennis nisi 
perennans, pluri- v. multieaulis facie quarundam Tillearum 
Saginarumve. Caules erecti v. diffusi v. raro procumbentes, 
obseure v. distinete angulati, magis quam folia scabriusculi, ni 
omnino leves. Folia crassiuseula, 3-6" longa, 1-13" lata. Pedi- 
celi tantum 1-21" longi. Calycis laciniw lanceolato-lineares, 
circiter 1" longz. Corolla alba, demum erubescens, extus inter- 
dum seabriuseula; segmentis lanceolato- v. delteoideo-ovatis, $3" 
longis. Filamenta brevissima. Antherz ovatz. Capsula circiter 
1" metiens, vertice bivalvis. Semina nigro-fusca, fere tetrahedra, 
cireiter 1" metientia. 
Species unica revera extratropica Australie continentalis. 
Hedyotis trachymenoides. 
(Sect. Oldenlandia.) 
Erecta, scabra, perennis, dichotome ramosa, caulibus ramisque 
tetragonis, foliis margine revoluto lineari-filiformibus, vagina 
stipulari truncata v. in laciniam unam alteramve lineari-setaceam 
producta, pedicellis axillaribus solitariis et terminalibus subeorym- 
bosis calyce duplo pluriesve longoribus, calycis lobis distantibus 
tubo semigloboso brevioribus, corolla longitudinem calycis ali- 
quoties excedente, tubo laciniis fere duplo longiore, capsula renato- 
obcordata triente e calyce emersa loculicide dehiscente, valvis 
bifidis, seminibus majusculis minutissime reticulatis. 
In vicinia fluminis Dawson River; F. M. Ad flumen Isaacs 
River; E. Bowman. 
Herba spithamza v. paulo altior. Folia summis exceptis 3-1" 
longa, 1-3" lata, acuta, Pedicelli 2-6" longi. Calyx circiter 1" 
longus, laciniis semilanceolatis. Corolla pene 3" metiens, fauce 
barbata. Stamina inclusa. Capsula 11-1l$" lata, leviter com- 
pressa, loculis oligospermis. Semina spadicea, fere 1" metientia, 
rotundata, peltata, aptera. 
Hedyotis pterospora. 
(Sect. Oldenlandia.) 
Erecta, scabra, caulibus ramisque tetragonis, foliis linearibus 
acutis margine revolutis, vagina stipulari utrinque in dentes 1—3 
lineari-subulatos protracta, pedicellis solitariis v. geminis inzequi- 
longis racemum struentibus firmis fructu longioribus et brevioribus, 
tubo coroll; laciniis duplo longiore dentes calycis fere triplo exce- 
dente, capsulis renato-obcordatis calycis tubum paulo superantibus 
loculieide bivalvibus, loculis oligospermis, seminibus preter avin 
longitudinalem complanatis ala secedente tenerrima anguste cinctis 
magnis subovatis. 
In vicinia rivi Sturt's Creek.  F. M. 
