-358 NOTES FROM THE BOTANIC GARDENS, SYDNEY, XIV., 



Acacia Dorothea Maiden. 



Since the publication of the description of this species in these 

 Proceedings, xxvi., p.l2, 1901, we have received numerous speci- 

 mens from Blue Mountain localities, which do not much enlarge 

 the very limited geographical range of the species, but which 

 necessitate the transposition of the species into the Section 

 Juliflorce. The new material, especially specimens in bud from 

 Leura (A. A. Hamilton and others), show distinctly that the 

 flowers are in short spikes, \'\ inch (5-11 mm.) long, though often 

 appearing globular when in full flower. 



This transposition makes the aflinities of the species still more 

 difiicult to trace. There is not a single Acacia in Julijiorce with 

 prominently 1 -nerved phyllodia, so the species stands isolated in 

 this Section. Its nearest affinities are doubtless in Uninerves, 

 but in this Section it would stand isolated by its spike-like 

 inflorescence. 



The position of this Acacia is therefore one not free from doubt. 



Bentham regarded the phyllodia characters of primary iinport- 

 ance, and kept a number of Acacias with spicate inflorescence 

 under the Section Pungentes. Mueller regarded the spicate 

 inflorescence as of more importance than the phyllodia, and 

 removed Bentham's spicate Fiingentes to Julijlorcn. 



If we take Bentham's view, we must leave it in Uniiierves. If 

 we take Mueller's view, we must remove it to Julijiorce. 



HALORREAGACEiE. 



Halorrhagis Lucasi, n.sp. (Plate xxxi.) 



Frutex erectus, laevis, glaber, infra 1 m. altus, ramis quad- 

 rangulis. Folia opposita, lanceolata, extenuata basi sed sessilia, 

 3-5-5 cm. longa, irregulariter serrata. Flores solitarii in brevibus 

 pedicellis in axillis foliorum superiorum, vel terminales in brevi- 

 bus axillaribus foliatis ramulis. Bracteolge foliaceee sessiles in 

 pedicello juxta calycis basem. Calycis tubus Isevis, qaatuor longi. 

 tudinalibus alis, lobis lato-triangulis, tubo circiter duplo breviori- 

 ^bus. Petala quatuor, alba, linearia, circiter 12 mm. longa et 



