\ 



Olax.] XXXII, OLACiXEiE. 393 



Queensland. Edges of lagoons, Moreton Island, F. Mueller, 



N, S. "Wales. Port Jackson, R. Brown, Sieher, n. 130, and others; Blue Mountains, 

 Miss Atkinson ; Port ^Iacc[uyrie, Backhouse ; barren brushes, N.W. iuterior, Fraser. 



J 4. O. Benthamiana, J//^. in PL Freiss, I 228, A glabrous shrub of 

 about 2 ft., usually nuicli-bniuched and 3Uore rigid than 0. striata, and not 

 dryuig so black. Leaves in tlie ordinary form linear or narrow-obloug in the 

 lower part of the branches, about ^ in. long, terminating in a recurved point, 

 naiTowed at the base, rather thick, convex underneath, with the midrib less 

 prominent than in the preceding species, the upper leaves, especially the floral 

 ones, passing into a short broadly obovate form; in a few luxiuiant speci- 

 mens, all the leaves are obovate-oblong, 1 in. long or rather more ; in others, 

 all are broadly obovate, cuneate, or obcordate, ^to ^ in. long, and not mucro- 

 nate. Flowers 2 to 3 lines long as in 0. stricta, but the staminodia are 

 pubescent only, or sliglitly bearded, and divided to the middle into 3 linear, 

 oblong, or spatlndate lobes, nearly as long as the petals. Fruit globular, at- 

 taining 4 or 5 lines diameter. 



N. Australia. Bay of Eest, N.W, coast. A, CunmngJiam, (A single specimen with 

 small obovate leaves.) 



S- Australia. Port Lincoln, W'ilhelmi, (Specimens with obovate leaves, not seen in 

 flower and therefore doubtful, although precisely resembling some W. Australian ones.) 



W". Australia. Swan River, Drummond, Pr^^iss, n. 200^, Oldfie/d, tic, (leaves mostly 

 narrow and pointed); Murchison river, Otdjie/d {Iquxqs all obovate or oblong); Gardiner 

 and Kalgan rivers, Oldjield (leaves cuucute, cmarginate, or obcordale) ; Swan River, i)n 

 mond, n. 729 (leaves, especially the floral ones, small and broad, llowers small, the lobes of 

 the staminodia oblong-spathulate and pctaloid). 



^ topadocalyx uligmosus, Kl. in PL Preiss. i. 178, correetcJ to Olax uUginosa, Kl. I.e. ii. 

 -30, from swampy places in the plains between Mounts Melville and Elphiustone, rrelss, «. 

 1210, which I have not seen, would appear, from the very imperfect description given, to 

 he the ordinary narrow-leaved form of O, Benthamiana. 



5. O. aphylla, E. Br. Prod. 338. A shrub of several ieciy with nn- 

 inerous, wiry, viro-ate, slightly pubeseent branches. Leaves all rcdnced to 

 iflinnte seales. blowers very small, almost sessile in the axils of orbicuhir 

 ciliate bracts rather longer than the calyx, towards the ends of the branches. 

 Petals scarcely more than 1 line long, densely bearded inside about the mid- 

 tile. Staminodia linear and entu-e, or slightly spathiJate and emarginate at 

 the top. Fruit ovoid, about 2 lines long. 



N, Australia. N. coast, R. Broio7i ; barren stony ridges on the Fitzmaurice river, 

 ■F. 3fucller; Arnhem'a Laud, LeichhardL 



Thibe II. OpiLiEiE.— Stamens as many as petals or corolla-lobes and op- 

 posite to them, usnally alternating with as many hypogynous glands or scales. 

 Ovary l-celled, with a single ovule, erect or suspended from an erect central 

 placenta. Seed spuriously or sometimes perhaps really erect ; radicle superior 



3. CAlSrSJERA, Juss. 



Perianth apparently simple, the calyx very minute and often nut distm- 

 guishable, at the base of the tubular or urceolate 4 Jobed corolla. Stamens 4, 



Brum^ 



opposite to the petals or corolla-lobes, and more or less adherent at the base ; 

 filaments filiform; anthers small. Hypogynous scales (or lobes of the disk) 

 4. alternating with the stamens. Ovary small, fleshy; ovule 1, apparently 



