ASCLEPIADE.E. XXVIII. MARSDEMA. 



131 



4-61.) stem twining, leaves cordate, broad-ovate, acuminated, 

 tomentose, soft ; cymes umbel-formed ; throat of corolla naked ; 

 stigma mutic. 1? .' ^. S. Native of New Holland, within the 

 tropic. 



Veltety Marsdenia. Shrub tw. 



2 M. BRCXOMA'.VA (Wight and Arnott, contrib. ind. bot. 

 p. 40.) twining, glabrous ; leaves broad-cordate, acuminated ; 

 peduncles shorter than the petioles ; flowers cymose, largish, 

 glabrous ; segments of corolla obtuse ; leaflets of corona atte- 

 nuated, about equal in length to the gynostegium ; stigma 

 bluntly apiculated. 1- . ^. S. Native of the East Indies, 

 near Columala. Wight, cat. no. 1524. The cymes are small ; 

 but the flowers are the largest of the genus. 



Bron-ns Marsdenia. Shrub tw. 



3 M. FLAVESCE.VS (Cunningh. in bot. mag. t. 3289.) twining ; 

 leaves oblong-lanceolate, acuminated, somewhat undulated, gla- 

 brous above, but clothed with hoary tomentum beneath ; pedun- 

 cles twice the length of the petioles ; cymes many-flowered ; 

 corolla sub-rotate ; stigma mutic. fj . ^. S. Native of New 

 Holland, on the sea-shore. Flowers yellowish. Stamineous co- 

 rona of 5 fleshy teeth, united to the back of the anthers, which 

 latter are diaphanous at the extremity. Stigma flat. 



re/forwA-flowertd Marsdenia. Fl. Ju. July. Clt. 1823. 

 Shrub tw. 



$ 2. Throat of corolla at rcell at the tube bearded. Hairt 

 of the tube disposed in 5 reflexed fascicles. 



4 M. TINCTORIA (R. Br. 1. c.) stems twining; leaves cordate- 

 ovate, or oblong-acuminated, smoothish, furnished with a gland 

 towards the base abo'-e : thyrse lateral; throat of corolla 

 bearded ; flowers small ; leaflets of corona about equal in 

 length to the gynostegium, subulate ; stigma mutic. J? . '"'. S. 

 Native of Sumatra, Silhet, and Prome. Faroom-akkar, Marsd. 

 sumat. p. 78. Pergularia tinctoria, Spreng. syst. 1. p. 844. 

 Asclepias tinctoria, Roxb. fl. ind. 2. p. 43. mus. ind. or. t. 615. 

 M. monostachya, Wall. mss. Flowers numerous, small, yellow. 

 The leaves yield more and better indigo than Indigofera tinc- 

 toria ; and Dr. Roxburgh has recommended an extensive culti- 

 vation of it. 



Dyers' MarsJenia, or Sumatra Indigo. Shrub tw. 



5 M. viRiDiFLORA (R. Br. 1. c. p. 30. prod. 461.) stems 

 twining ; leaves oblong-lanceolate, smoothish, obtuse at the 

 base ; tube of corolla villous inside. > . / "\ S. Native of 

 New Holland, within the tropic. Pergularia viridiflora, Spreng. 

 syst. 1. p. 844-. 



Green-florrered Marsdenia Shrub tw. 



6 M. HAMILTOSII (Wight, contrib. ind. bot. p. 41.) twining, 

 glabrous ; leaves cordate-oblong, acuminated ; cymes subcapi- 

 tate, many-flowered, shorter than the petioles ; flowers small ; 

 tube of corolla ventricose, closed by hairs ; leaflets of corona 

 longer than the gynostegium, tapering at the apex ; pollen 

 masses oblong, fixed bv minute corpuscles ; stigma apiculated. 

 1} . r ^. S. Native of the East Indies, at Sukanagur. Cynan- 

 chum, Wall. ascl. no. 84. C. reticulaturn, Ham. herb. no. 750. 



Hamilton's Marsdenia. Shrub tw. 



7 M. ROTH ii ; leaves roundish -oval, obtuse, glabrous, as 

 well as the stems, which are twining ; corymbs axillary, dicho- 

 tomous, hairy : corollas tomentose inside. Tj . /0> . S. Native 

 of the East Indies. Asclepias plicata, Roth. nov. spec. Co- 

 rolla black, beset with scattered hairs outside, and clothed with 

 greyish tomentum inside ; hardly a line in diameter. 



Roth's Marsdenia. Shrub tw. 



8 M. CLAU'SA (R. Br. 1. c. p. 30.) stem twining ; leaves 

 lanceolate, acute at both ends, glabrous, wrinkled a little above ; 

 throat of corolla densely bearded. 1- . ^. S. Native of Ja- 

 maica. Pergularia clausa, Spreng. syst. 1. p. 844. 



C&Mf-flowered Marsdenia. Shrub tw. 



9 M. SCAVE'OLENS (R. Br. 1. c.) stem erectish ; leaves oval- 

 lanceolate, glabrous, veinless ; corolla with a ventricose tube, 

 and a bearded throat. \ . ^. S. Native of New Holland, 

 without the tropic. Rudge, in Lin. trans. 10. p. 299. t. 21. 

 f. 1. Ker. bot. reg. t. 489. Pergularia suaveolens, Spreng. 

 syst. 1. p. 843. Panicles axillary, 6-8-flowered. Calycine 

 segments ciliated. Filaments broad, inserted beneath a 5- 

 toothed conical nectarium, ex Rudge. Flowers white. 



Sneet-scented-BovreTed Marsdenia. Fl. July, Aug. Clt. 

 1816. Shrub 2 to 3 feet. 



10 M. CIXERA'SCESS (R. Br. 1. c.) stem erect ; leaves ovate, 

 bluntish, veiny, beset with a little scattered down, petiolate, 

 half an inch long ; corolla subrotate. Jj . S. Native of New 

 Holland, within the tropic. Pergularia cinerascens, Spreng. syst. 

 1. p. 844. 



Greyish Marsdenia. Shrub 2 to 3 feet. 



3. Tube of corolla downy inside. 



1 1 M. ROYLEI (Wight et Arnott, contrib. ind. bot. p. 40.) 

 twining, tomentose ; leaves broad-cordate or ovate, acuminated ; 

 cymes shorter than the leaves ; calyx hairy ; corolla hairy 

 inside : throat crowned by 5 plicae, which are opposite the 

 sinuses; leaflets of corona much longer than the gynostegium, 

 filiform at top ; stigma bluntly apiculated. ^ . / "\ S. Native 

 of Kenour, Royle ; Simla, Countess of Dalhousie. M. velu- 

 tlna, Royle, herb., but not of R. Br. The plicae at the bottom 

 of the recesses, between the segments of the corolla, almost 

 resemble thickish scales. 



Royle's Marsdenia. Shrub tw. 



12 M. ASGLSTIFOLIA (Wight, contrib. ind. bot. p. 40.) twin- 

 ing, much branched ; stem, branches, and peduncles downy ; 

 leaves almost sessile, lanceolate, glabrous in the adult state ; 

 cymes twin, few-flowered, shorter than the leaves ; leaflets of 

 corona shorter than the gynostegium ; stigma truncate, fj . ^. S. 

 Native on hills at Prome. Marsdenia, Wall. ascl. no. 58. 

 Rumph, amb. 5. t. 40. f. 1. ? 



Narrow-leaved Marsdenia. Shrub tw. 



4. Throat of corolla naked ; tube sparingly pilose. Leaflets 

 of corona broadish, truncate or bifid at the apex ; bearing each, 

 near the base, one acuminated lobe, and another keel-formed one. 

 Cymes large, spreading, many-faltered ; flowers rather large. 

 This section may eventually form a distinct genus. 



13 M. CALESIA'XA (Wight, contrib. ind. bot. p. 41.) twining, 

 downy; leaves cordate, or cordate-ovate, acuminated, tomen- 

 tose on both surfaces ; cymes large, many-flowered ; segments 

 of corolla narrow, acute, with revolute edges ; leaflets of the 

 corona deeply bifid: one of the lobes is longer than the other, 

 lying upon the anthers, the other shorter and keeled towards 

 the base ; stigma apiculated. *j . *"*. S. Native of the East 

 Indies, at Morang. Pergularia Calesiana, Ham. herb. Wall, 

 ascl. no. 57. e. 



Cales's Marsdenia. Shrub tw. 



14 M. TESAcissiJCA (W'ight and Arnott. contrib. ind. bot. 

 p. 41.) twining ; leaves cordate, acuminated, tomentose on both 

 surfaces ; cymes large ; segments of corolla broad, obtuse ; 

 leaflets of corona broad, truncate, and nearly entire at the apex, 

 or bifurcate ; stigma bluntly apiculated. ^ . /< \ S. Native of the 

 East Indies, on the hills of Rajemahl and Chittagong. Asclepias 

 tenacissima, Roxb. cor. 3. p. 35. t. 240. fl. ind. 2. p. 31. mus. 

 ind. orient, t. 1381. Asclepias tomentosa, Herb. madr. Asclep. 

 echinata, Herb. madr. Gymnema tenacissimum, Spreng. syst. 1. 

 p. 844. Flowers greenish yellow. Corollas salver-shaped; 

 segments greenish towards the centre, with the outer half 



s 2 



