OCHNACE^E 331 



carpel, remaining in the ground attaching the seedling to the fruit 

 till the latter is exhausted. 



Stem woody, shrubby, erect, terete, pale green, glandular-pubes- 

 cent ; 1st internode 1-2 cm. long ; 2nd 1-4 cm. ; 3rd 5 mm. ; 

 4th 6 mm. ; 5th 2'5 mm. ; 6th 1-5 mm. ; 7th to 10th crowded or 

 undeveloped. 



Leaves simple, gland ular-ciliate, serrate, cauline, alternate, 

 stipulate, subsessile, thickened at the base and articulated with a 

 raised knob or projection of the stem, glabrous, deep shining green, 

 and finely reticulate above, paler beneath and shining ; midrib pro- 

 minent on both surfaces; stipules small, brown, scarious, rigid, 

 subulate, connate by their edges for two-thirds of their length or 

 throughout, and lying between the leaf and the stem. 



Nos. 1 and 2. Reduced to small, subulate scales. 



No. 3. Small, foliaceous, oblanceolate-linear. 



No. 4. Much larger, lanceolate, serrulate. 



Nos. 5-9 inclusive. Lanceolate-elliptic, acute, serrulate. 



BURSERACE/E, 



Benth. et Hook. Gen. PL i. 321. 



Fruit and Seed. The typical Burseraceae have two to five 

 carpels, united to form an ovary with the same number of cells. 

 Amyris and Hemprichia are exceptional, inasmuch as the ovary 

 is one-celled. The ovules are attached to an axial placenta, 

 above the middle and generally near the top, and are pendu- 

 lous, anatropous, collateral, with a ventral raphe and superior 

 micropyle ; rarely ascending. The usual number is two, but 

 there is only one in each cell of Filicium, and one in the 

 unilocular ovary of Hemprichia. The fruit is drupaceous, 

 consisting of two to five connate or separable pyrenes. The 

 epicarp is persistent, or splits open by two to four valves, 

 leaving the pyrenes naked. The latter consist of the woody 

 or bony endocarp. In some cases, however, the endocarp is 

 not bony, and may even dehisce irregularly. 



The seeds are generally if not always solitary in each 

 loculus, by abortion, very large, and exalbuminous with a 

 membranous testa. The seed of Santiria is peltate, and the 



