A GENUS OF THE SIMABUBACEJE. 151 



lines long. Spikes axillary, 2 in. long, bearing numerous, small, 

 whitish flowers which are alternately proximate ; the upper spikes 

 are without leaves and form a pseudo-panicle. The structure of 

 the flowers as in the generic character. 



2. Marupa Paraensis, nob. — Maroupa ou Simaruba, Soma Sf 

 Almeida, Cat. Bras. Collect p. 75, sub no. 438, Para. Vidi lignum 

 Pao Pombo dictum, etfructus in alcohol ; ccetera invisa. 



No leaves were attached to the specimen indicated : this con- 

 sisted of simple axillary racemes torn from a branch ; its pe- 

 duncle 1| in. long, having about 6 alternate pedicels 3-4 lines 

 long, all void of flowers, except one that was fructiferous; its 

 pedicel supporting the persistent portions of the flower, which 

 consisted of 5, small, erect, acute sepals, 10 rounded fleshy scales 

 of the stamens from which the filaments had fallen; these sur- 

 rounded the short gynophore, bearing on its summit 4 minute 

 abortive ovaries and a single mature fruit as already described : 

 the pericarp is pale and translucent, 18 lines long, 12 lines 

 broad : the putamen, which nearly fills the cavity of the endocarp, 

 is 14 lines long, 8 lines broadband 4 lines thick, is osseous, rugous, 

 1-celled, containing a single, flattened, suspended seed 7J lines 

 long, 4 lines broad, as in the generic character. 



DESCRIPTION OF THE PLATES. 



Plate IX. 



Fig. 1. A branch of Marupa Franeoana, taken from Senh. Netto's illustration of 



his Odina Francoa?ia 1 with an inflorescence of small male flowers : 

 natural size. 



2. A flower in bud : enlarged. 



3. A flower matured and expanded, showing the calyx, petals, and stamens: 



also magnified. 



4. An anther, seen behind ; 



5. The same, shown in front : both highly magnified. 



6. The ten staminal glands or scales, two of them showing the filament* 



and anthers, all surrounding the gynophore, which supports fire ste- 

 rile ovaries : magnified. 



7. A section of a flower, where sometimes one of the sterile ovaries becomes 



larger and bears a single effete ovule, thus approaching a state of 



hermaphroditism : magnified. 



8. The effete ovule : highly magnified. 



9. The ten staminal scales surrounding the gynophore, which supports 



five minute sterile ovaries : much magnified. 

 10. A diagram showing the relative positions of the several parti. 



LINN. JOURN. — BOTANY, YOL. XVII. M 



