NEW AXD LITTLE-KNOWN MADAGASCAR PLANTS. 31 



pedimculis elongatis subcorymbosis pauciiioris, involucro basi 4- 

 bracteolato, involucri bracteis 4 lfnearibus acutis glabris inargiiic 

 mernbranaceo, achseniis striatic glabris. 



Root long and woody, about 7 mm. in diameter. Leaves 

 crowded together, minutely dotted on lower surface, about 5-7 

 cm. long and 2-3 cm. broad, denticulate along the margin ; den- 

 ticles about 1 mm. high. Scape 1| feet, few-flowered. Bracteoles 

 of calycle ovate-cordate (2-3 mm.) ; bracts of involucre 1/5 cm. 

 long, with a broad membranous margin. Achenes 6 mm., marked 

 by numerous scabrous ribs. Pappus abundant. 



>la, Welwitsch 3062 ! Sandy places, Fort Dauphin, Scott 



Elliot 2712 ! 



SAPOTACE.E. 



SlDEBOXILON BaKEUI, sp. n. 



Pruticosum, ramulis pallidis striatic, foliis oblanceolatis in 

 petiolum gradatim attenuatis glabris margine revoluto, calycis 

 segmentis 5 ovatis basi subcordatis corollas tubo scgmenta 

 tequante, staminibus 5 extrorsum dehiscentibus, staminodiis 

 5 ovatis hirsutis circa stylum conniventibus, stylo exserto, ovario 

 hirsuto 5-loculari, loculis 1-ovulatis. 



A shrub. Leaves about 6-7 cm. long and 2*5-3 cm. broad 

 (younger leaves very thinly hairy). Flowers rather numerous, axil- 

 lary ; pedicels drooping, more than 1 cm. long. Calyx about 4 mm. 

 long, covered externally by glistening golden - brown hairs. 

 Corolla-tube 4 mm., segments ovate concave. Stamens extrorse ; 

 ataniinodes completely excluding all unnecessary insects. Ovary 

 5-lobed, with 1 seed in each loculus. Near S. microlobum, Baker 

 (Journ. Linn. Soc. xxv. 333). 



In woods, Fort Dauphin, 2969 ! 



SlbEROXYLON MICROPHALLUS, Sp. H. 



Arbusculum, ramis junioribus hirsutis demum glabratis pallidis 

 corrugatis, foliis parvis obovatis obtusis subglabris margine 

 revoluto, floribus l-3nis axillaribus, calycis segmentis suborbi- 

 cularibus, corolla segmentis ovatis, filamentis 5 corollam requan- 

 tibus, staminodiis petaloideis ovatis ciliatis inflexis, stylo exserto. 



A much-branched shrub. Leaves 2-2*6 cm. long and 6-9 mm. 

 broad ; petiole very short ; branches and petioles covered at 

 first with glistening golden-brown caducous hairs. Pedicels 

 about 5 mm. long. Flowers about 5 mm., of which the calyx 



