52 NEW GENERA OF W. AUSTRALIAN PLANTS. 
fidam connexa, serie interiore 6, fertilia, unilateralia ; filamenta 
brevia; anthere terminales, oblongæ, obtuse. Ovaria 2, distincta, 
sericea, uniloeularia; ovulis 2, superpositis, e sutura ventrali ad- 
scendentibus. Styli subterminales, filiformes. Capsule . . . —Fru- 
tex erectus, ramosissimus ; foliis alternis, linearibus, margine revolutis, 
supra glandulosis ; pedunculis alaribus elongatis multifloris ; floribus 
luteis unilateralibus sessilibus bibracteatis. 
Hemistephus linearis, J. Drum. 
Has. Northern districts. — This genus is closely allied to Hemi- 
stemma, from which its definite stamens and the different position of 
its ovules distinguish it. "There is no difference in habit. 
CRUCIFERZ. 
3. Grococcus, J. Drum.— Calyz tetraphyllus, foliolis patentibus. Pe- 
tala 4, oblonga, exunguiculata, calyce breviora. Stamina 6, tetra- 
dynama, filamentis applanatis. Ovarium biloculare, ovatum, pauci- 
ovulatum. Stigma sessile. Silicula oblonga, subcompressa, septo 
latiusculo, bivalvis, valvibus membranaceis rugulosis venosis. Se- 
mina in loculis 3-4, ovalia, convexa. Cotyledones plano-convex®, 
. lineares, incumbentes.—Herbula minima, annua, subacaulis ; foliis 
e collo radiantibus pinnatifidis, laciniis oppositis triangularibus; flo- 
ribus azillaribus solitariis minimis sub anthesi sessilibus demum longe 
- pedunculatis, pedunculo fructifero deffezo in humum siliculam celante. 
. Geococeus pusillus, J. Drum. 
. Has. Northern districts; among a cluster of Boordis’ (a species of | 
Kangaroo-rat) holes on the limestone part of Conolly's station. After 
flowering, the peduncles lengthen downward and bury the small seed- 
vessels about an inch underground ; seeds surrounded by a mucilage, 
like seeds of Cress when steeped in water.—J. D. 
s PITTOSPORACE®. 
. CaxoPETALON, J. Drum.—Calyz pentaphyllus, wqualis. Petala 5 
(nune 6-7), hypogyna, spathulata, unguibus curvatis in corollam 
subringentem conniventibus. Stamina 5, unguibus petalorum lon- 
 gioribus ; filamenta applanata, spathulata, apice acuminato-filiformia ; 
 antherz oblongæ, introrse, biloculares, dorso prope basin affixe, 
longitudinaliter dehiscentes. Ovarium breve stipitatum, ériloculare, 
loculis multiovulatis. Stylus filiformis ; stigma simplex. Cupsula . - - 
