124 THE VICTORIAN NATURALIST. 



sheep when drinking, and the future development of the fluke 

 thus secured. Mr. W. McCaw has also noted, during the last 

 few days, the occurrence of cysts within Bulinus tenuistriatus. 



It has already been shown that the ciliated embryo fluke has 

 enlarged its borders in Australia in the matter of the intermediate 

 hosts. May it not be that the special climatic conditions have 

 also influenced the last stage of its embryonic life? Mr. Fielder's 

 observations point in this direction, and his future work will 

 probably confirm this view. 



DESCRIPTIONS OF NEW AUSTRALIAN PLANTS, WITH 



OCCASIONAL OTHER ANNOTATIONS; 



By Baron von Mueller, K.C.M.G., M. & Ph.D., LL.D., F.R.S. 



(Continued.) 

 Velleya Cusackiana. 



Herbaceous, erect ; leaves all basal but numerous, linear, acute, 

 densely beset with long whitish mostly appressed hairlets ; stems 

 peduncular, slender, except towards the base only scantily bearing 

 vestiture ; flowers rather small, lo to 15 in a simple raceme; 

 pedicels thin, mostly longer than the flowers, near the upper end 

 jointed ; bracts very narrow, acute ; bracteoles none ; calyx quite 

 small, provided outside as well as the bracts, pedicels and outer 

 portion of the corolla with a thin almost velvety indument, 

 divided to the base into lanceolar segments ; corolla-lobes all 

 equally expanding into yellow membranes ; anthers blunt ; style 

 very short but stout, slightly beset with hairlets ; stigma-cover 

 ciliolated at the orifice ; capsule turgidly ovate ; dissepiment 

 almost obliterated ; seeds several, flat, ovate-orbicular, margined 

 by a narrow membrane. 



Near the Fortesque-River ; W. H. Cusack, Esq. 



Leaves about 30, crowded, to i^ inches long, to only ^^-inch 

 broad. Stems and racemes together some few inches long. 

 Calyx remaining almost unenlarged, thus hardly exceeding ^- 

 inch in length. Corolla about half an inch long, its three lower 

 lobes shorter than the connate portion, all lobes expanding on 

 both sides equally into yellow membranes ; the undivided lower 

 portion of the corolla vitellinous and nearly glabrous inside. 

 Fruit somewhat surpassing the calyx. Seeds comparatively large, 

 but not obtained in a matured state. 



This plant belongs to a group of species, restricted to Western 

 Australia, and offers with some of them a transit to Goodenia, 

 with some species of which they conform in aspect. In the system 

 it should be associated with V. cyonopotamica, V. Snhnoniayiay 

 V. Forrestii and V. macroplectra, but is amply distinct, and 

 could be placed under Grodenia. 



