570 



in two rows along the narrow keel or dorsal rib of the meri- 

 carp and are scattered along the intermediate ribs, differ 

 markedly from those of Neosciadium, where they consist of 

 straight slender bristles with several short reflexed barbs or 

 hairs near the summit, whereas in Uldima they are simple, 

 stout, and hooked at the end. Still more remarkable are the 

 two lanceolate wings attached to the summit of each inter- 

 mediate rib and spreading outwards at right angles to the 

 flattened sides of the mericarp. By their shape and position 

 they recall the wings with which classic legend adorned the 

 feet of Mercury. As far as my knowledge goes, they do not 

 occur in any other umbelliferous plant. They also have small 

 hooked prickles along the margin, so that the fruit appears 

 well adapted for transport either by animals or by the wind. 

 The divaricate wings and the hooked prickles should perhaps 

 be ranked rather as specific than generic characters, but even 

 in that case the other peculiarities of the plant appear suffi- 

 cient to necessitate the creation of a new, although probably 

 monotypic genus. 



The name of the new genus is derived from ''uldilnga 

 gabi," the native name of ''Ooldea Water," more generally 

 known as the Ooldea Soak, and about three miles from the 

 Ooldea Railway Station. 



Myoporaceae. 



Eremophila pentaptera, n. sp. (Tab. xxxvii.) Frutex 

 humillimus glaber circ. 30 cm. altus, caulibus erectis, foliis 

 alternis crassis subplanis oblongo-cuneatis sessilibus ob- 

 tusissimus 10-35 mm. longis 4-8 mm. latis, floribus solitariis 

 subsessilibus, pedunculis brevissimis erectis obconicis acute 

 quinquangulis circ. 5 mm. longis, calycis segmentis aequalibus 

 circ. 12 mm. longis glabris lanceolato-acuminatus sed obtusis 

 valde imbricatis secus dorsum acute carinatis vel anguste 

 alatis in pedunculum brevem decurrentibus, corolla violacea 

 25-35 mm. longa exterius glabra in faucibus alba lanata 

 maculis fulvis obsita, tubo ad basin cylindrico sursum sensim 

 dilatato, omnibus lobis rotundatis et tubo aequilongis (exceptis 

 2 supremis brevioribus) iniimo truncate 14-18 mm. lato, 

 staminibus inclusis, ovario conico glabro, stylo pilosulo, ovulis 

 2 in utroque loculo, fructu non viso. 



This lowly Eremophila was discovered by Professor F. 

 Wood Jones in September, 1922, on flats near Miller Creek, 

 about 60 miles (100 km.) north-east of Kingoonya Railway 

 Station. It appears to be local in its distribution. The ovary 

 hae two cells, each with two ovules, and the corolla-tube has 

 a cylindrical base, in which respect it agrees chiefly with 



