956 LXXV. SAPOTACE^. [Lucuma. 



corolla-lobes. Anthers large, cordate. Ovary densely villous, tapering into a 

 glabrous style as long as the filaments. Fruit oval-oblong, slightly tapering at 

 the base, purple, about an inch long. Seed 1. 



Hab.: Eumundi. 



3. SIDEROXYLON, Linn. 



(From the Greek ; a species in Africa called Ironwood.) 



(Achras, Linn.) 



Calyx funnel-shaped or rotate, deeply 5, rarely 6 or 7-partite, the segments 

 obtuse or subacute, imbricate but not arranged in 2 distinct rows. Corolla little 

 longer than the calyx ; segments as many as those of the calyx, entire, longer 

 than the tube. Stamens as many as the corolla-segments and inserted opposite 

 to them at the throat of the tube ; filaments subulate ; anthers oblong or ovoid, 

 usually extrorse ; staminodia as many as the stamens and alternate with them, 

 linear or linear- subulate, entire, small or as long as the filaments. Ovary 

 globose, 5 or more-celled ; style subulate. Berry fleshy or coriaceous, ovoid or 

 globose. Seed by abortion sometimes solitary, 2, or few ; testa glossy ; hilum 

 long ; albumen fleshy ; cotyledons foliaceous or thickened. — Tree or shrub. 



Flowers sessile or on pedicels shorter than the flowers. 



Leaves broad, on long petioles, softly pubescent on both sides .... 1. S. arnliemicum. 



Leaves narrow, glabrous 2. S. Pohlmanimmm. 



Pedicels longer than the flowers. , ■ . r 



Leaves perfectly glabrous on both sides. 

 Leaves distinctly acuminate. Hilum linear. 



Petioles rather long ; minor veinlets scarcely conspicuous . . . 3. S. xerocarpam. 

 Petioles short. Leaves thin, the minor veinlets conspicuous . . 4. S. cJiartaceum. 

 Leaves scarcely acuminate, reticulate ; petioles rather long. Hilum 



broad . . . S. S. laurifdlium. 



Leaves scarcely acuminate, coriaceous, much reticulate ; petioles 



rather short. Hilum linear 6. S. aiistralis. 



Leaves 3 to Sin. long, obovate, minutely silky underneath. Calyx- 

 segments orbicular. 



Fruit Jin. long or more. Seed usually 1 7. S. argenteum. 



Fruit somewhat pear-shaped, 2 to 2Jin. lonx. Seed 1 or 2 . . . . 8. S. eerwali. 

 Leaves glabrous, lanceolate-ovate. Fruit 8 to 16 lines long, almost 



globose. Seeds 1 to 4 , ' 9. S. eupMebia. 



Leaves hoary, thin, 2 to 4in. long 10. S. BrownUtsiana. 



Leaves glabrous, 3 to Sin. long, lin. wide. Fruit lin. diameter. 



Seeds 5 11. S. dugulla. 



Leaves mostly 1 to 2in. long, ovate or obovate, pubescent. Calyx- 

 segments ovate 12. S. myrsinoides. 



1. S. arnhemicum (from Arnhem's Land), Benih. and Rook. Oen. PL 

 ii. 655. A tree about 25ft. high, with a well shaped heiad. Trunk diameter 1ft., 

 the bark greyish and tessellated. Leaves ovate or oval-elliptical, obtuse, 

 contracted at the base, softly silky-pubescent on both sides, 2 to 4in. long, on 

 petioles of above lin. Flowers in dense clusters in the lower axils or at the old 

 nodes, softly pubescent, the pedicels shorter than the flower. Calyx- segments 

 usually 6, very broad, . orbicular, obtuse, concave, the 2 outer ones villous, the 

 others less so and ciliolate, all rather above 1 line diameter. Corolla-lobes 6, 

 truncate ; filaments in the flowers examined filiform, with abortive anthers. 

 Scales of the corolla-throat small, linear. Ovary surrounded by a very dense 

 ring of hairs, 6-celled ; ovules laterally attached. Style short, thick, glabrous. 

 Fruit green, smooth and glabrous ; when ripe, oval, about l^in. or more long ; 



