New Victorian Ilaloragis and Genus Pluchea. 137 



H. trigovocarpa was obtained at the Gascoyne River hy 

 the Hon. John Forrest, and a variety with linear leaves at 

 Lake Austin by Mr. H. S. King. 



H. digyna is now known also from Israelite Bay (Miss 

 Brooke), Eucla (Oliver), and Lake Bonney (F. v. M.) ; its 

 calyx-lobes occur sometimes of deltoid form, and thoy 

 number not rarely like tlie petals styles and fruit-cells 

 three or four ; but, though the fruit may be quadrangular, 

 it is only one or two-seeded. From H. digyna cannot be 

 held apart as a species H. mucronata. Sometimes the fruit 

 produces callous extrusions, thus far reminding of the inner 

 sepals of Rumex ; the margin of the petals turns sometimes 

 bluish. 



H. pityoides occurs on the Arrowsmith River (F. v. M.) ; 

 it is Drummond's plant 706 ; the calyx-lobes are almost 

 deltoid, the fruit is sometimes densely beset with hairlets. 

 H. pusilla is closely allied to the foregoing. 



H. monosperma forms somewhat leafy spikes to the 

 length of three inches; according to specimens sent by 

 Mr. G. MacRae ; the petals are almost white, gradually 

 pointed, not prominently keeled, and fully to one-Cjuarter 

 inch long ; thus, as far as blooming is concerned, it proves 

 the most conspicuous among its many congeners, so far 

 approaching the Loudonias, to which it bears similarity 

 also in tall growth, while it verges to the Serpiculas in 

 carpologic characteristics ; but the fruit of a few other species 

 may ripen also only one seed, notably those of H. tetragyna 

 in India, as pointed out by Mr. C. B. Clarke in Sir Joseph 

 Hooker's Flora of British India, II., 431, and as noted 

 already by C. Koenig. 



H. trifida will likely prove a Myriophyllum, while the 

 H. cyathiflora, to judge from Fenzl's descriptive notes, may 

 possibly be a gyrostemonous plant. 



In concluding these short references to Australian Halor- 

 agese, it might yet be observed that the genus Meionectes 

 can no longer be maintained, after what we more recently 

 have learned of the numerical inconstancy of the floral 

 divisions in several species of Haloragis. Indeed, Meionectes 

 became impaired in its generic position already by the 

 discovery of a dimerous species as well of Loudon la as of 

 Myriophyllum, and Bentham also noticed before that his 

 Haloragis tennifolia was closely connected with Meinoctes 

 Brownii. In placing that plant under Haloragis now, 

 the generic name serves aptly for specific signification. 



