Marsihnia.] LXXX. ASCLBPIADB^. 1011 



18. M. coronata (corona prominent), Benth.FLAtistr.iw.3il. A rather 

 slender twiner, glabrous or slightly pubescent. Leaves petiolate, lanceolate, 

 acute, narrowed or rounded at the base, 1 to 2in. long. Umbels few-flowered, 

 simple and solitary on short interpetiolar peduncles. Pedicels 4 to 6 lines long. 

 Calyx-lobes ovate-oblong, obtuse, rather exceeding 1 line. Corolla-tube broad, 

 as long as the calyx, slightly contracted at the throat with a small inflexed scale 

 opposite each sinus; lobes as long as or rather shorter than the tube, broad and 

 very obtuse, all quite glabrous inside. Corona-segments broad, thick, and 

 horizontally prominent at the base, the erect free part acute, nearly as long as 

 the anthers. Pollen-masses oblong-clavate. Stigma very short and obtuse. 



Hab.: Brisbane River, Moreton Bay, F. v. Mueller. 



14. JVC. microlepis (corona-segments very small), Benth. Ft. Austr. iv. 342. 

 A twiner, softly pubescent or the foliage at length glabrous. Leaves petiolate, 

 ovate oblong or broadly lanceolate, obtuse or mueronate, truncate or almost 

 cordate at the base, 1 to l^in. long. Umbels many-flowered, simple, solitary and 

 nearly sessile. Calyx-segments pubescent, nearly 1 line long. Corolla-tube 

 nearly as long as the calyx, slightly contracted and thickened inside at the 

 throat, but quite glabrous ; lobes shorter than the tube, and apparently less 

 spreading than in M. oiridiflora, sometimes slightly pubescent outside. Corona- 

 segments peltate, the free erect part obtuse and very short. Stigma short and 

 obtuse. 



Hab.: Port Curtis, M'GilUvray; Burdekin Eiver, F. v. Mueller; head of Boyd Eiver 

 Leichhardt ; Nerkool Creek, Bowman (all pubescent) ; Eockhampton.Daiiac/ij/ (nearly glabrous). 



14. THOZETIA, F. v. M, 



(After M. Antbeline Thozet.) 



Corolla nearly rotate, deeply divided into 5 lobes induplicate-valvate in the 

 bud. Corona of 5 erect membranous segments, peltately attached to the back 

 of the anthers, the upper end free. Anthers terminating in a membrane. 

 Pollen-masses 2 to each anther, obovate-oblong, erect. Stigma conical. — 

 Tall twiner. Leaves herbaceous. Flowers in reflexed interpetiolar racemes, 

 the persistent rhachis much lengthened and covered with the scars of fallen 

 pedicels. 



The genus is limited to a single Australian species, allied to Hoya in its flowers, with the 

 corona of Marsdenia. — Benth. 



1. T. racemosa (flowers in racemes), F. v. M. Herb.; Benth. Fl. Austr. iv. 

 347. Apparently a tall woody twiner, the branches and petioles hirsute with 

 spreading hairs. Leaves cordate-ovate, rather narrow, 4 to Sin. long, glabrous 

 above, more or less hirsute underneath. Flowers rather large, dark coloured, 

 in reflexed interpetiolar nearly sessile racemes, the rhachis lengthening to 2in. 

 or more and densely covered with the prominent scars of the fallen pedicels, 

 interspersed with small persistent bracts. Pedicels 3 to 5 lines long. Calyx 

 slightly hirsute, the segments lanceolate, about 2 lines long. Corolla-lobes 

 narrow-lanceolate, about 5 lines long. Corona-segments peltate, the lower free 

 portion broad, the upper free portion oblong, truncate or sinuate, rather longer 

 than the anthers. Stigma narrow-conical. Follicles glabrous, acuminate. 



Hab.: Near Bockhampton, Thozet. 



The corollas I have seen are already expanded, but they have every appearance of having been 

 induplicate-valvate in the bud, as described in F. v. Mueller's notes. — Benth. 



Pabt III. T 



