74 PROCEEDINGS OF THE ROYAL SOCIETY OF QUEENSLAND. 
1.5-2 cm. longa, 1 mm. lata. Pedicelli glabri axillares, 1 mm. longi, 
prope apicem bracteati; bracteis 0*5-0*75 mm. longis, minute ciliolatis. 
Calyx nitidus, prominenter 5-dentatus, glaber; tubo 10-costato, 3 mm. 
longo, dentibus acutis triangularibus vix 1 mm. longis. Corolla extus 
pubescens, 7 mm. longa, exserta, tubo cylindrico superne in faucem 
campanulatum dilatato, limbo 2-labiato, postico concavo emarginato 
antico 3-lobato breviore. Stamina perfecta 2, postica; antheris dimidi- 
atim 1-locularibus, connectivo elongato antice in appendicem dilatatum 
barbatumque produetum; staminodia 2 antica, staminibus aequilonga, 
antheris ad connectivum parvum in ramos 2 breves productis. Nuculae 
reticulatae. 
Mitchell District : Enniskillen, common in rocky sandstone hills, 
C. T. White 12403 (flowers), 13th Nov., 1943 (shrub 2 m. twiggy upright 
growth; flowers white, sometimes with a faint purplish tinge). 
The genus was previously thought to be confined to West Australia. 
It comes into the section Hemigenioides and has closest affinity to M. 
tenuifolia Benth. which differs in the branches being hoary or white with 
minute appressed hairs, the flowers larger and the calyx clother with a 
minute hoary pubescence. 
Prostanthera lepidota sp. nov. 
Frutex expansus, ramosus, 2 m. altus, odore gratissimo, ramulis 
rigidis sparse pilosis plus vel minus dense lepidotis. Folia conferta, 
utrinque densissime glanduloso-lepidota, anguste obovata, crassiuscula, 
enervia, apice obtusiuscula, basi in petiolum brevem gradatim angustata, 
integerrima, plana vel leviter concava vel petiolum versus plus minusve 
involuta ; petioli 1-2 mm. longi ; laminae 0.8-1. 4 cm. longae, 3-4 mm. 
latae. Flores singuli in axillis foliorum superiorum ramorum brevium 
lateralium ; pedicellus 2-3 mm. longus, albo-villosus et. papillosus, prope 
basin bracteis 2 minutis praeditus. Calyx papilloso-glandulosus, 8 mm. 
longus, bilabiatus, tubo basin versus leviter costato, labiis obtusis fere 
aequilongis. Corolla 2*5 cm. longa, pilis albis plus vel minus sparsis 
obsita, labio postico concavo antico multo breviore!. Stamina 4 ; antherae 
2-loculares, loculis leviter divergentibus, connectivo pa.rvo in 
appendiculam non productivo. Nuculae (inunaturae) rugulosae. 
Mitchell District : Enniskillen, common in rocky sandstone hills, C. T. 
White 12404 (flowers), 13th Nov., 1943 (shrub 2 m., spreading branching 
habit, flowers at first greenish yellow or cream, later a peculiar bluish 
green (olivaceous or almost cupreous) with a tinge of purple). 
In Bentham’s arrangement in the “ Flora Australiensis” this species 
comes into Section Euprostantkera, Series S'Wbconcavae, with closest 
affinities probably to P. lith&spermoides F. Muell. which differs in the 
young shoots being silky, the leaves 2-5 cm. long, calyx smaller 5 mm. long 
and anthers with one appendage about twice as long as the cell. 
Family Amaranthaceae. 
Ptilotus leucocoma ( Moq .) F. Muell. Census Aus. Plants (First 
Edition) 29 (1882). 
Warrego District: Near Adavale (only one plant seen), Dr. 
MacGillivray (ex herb. A. Morris No. 944) ; Cunnamulla, C. B. 
Christesen (flowers), Sept. 1932: Charleville, E. W. Bick (flowers), 
Dec. 1916; Wallal, common on sand plains, C. T. White 12026 (flowers), 
26-3-1941 (annual; flowers lavender). 
