466 NATURAL HISTORY OF PLANTS. 
13. Potameia Dvr.-Tx.—Flowers hermaphrodite (or poly- 
gamous P), 2-merous ; sepals 2 petals 2, alternating, nearly similar to 
one another. Stamens 6-8; 2 outer alternate with petals and 2 
opposite fertile; filaments short dilated subfoliaceous; anthers 
introrse 2-celled. Stamens of third row 2, alternipetalous sterile, 2- 
glandular at base. Staminodes 2, interior oppositipetalous sterile 
minute glandlike, more frequently 0. Germen free (of Machilus). 
Berry superior free, inserted on unthickened pedicel and surrounded 
at base by short receptacle and scarcely enlarged perianth.—A 
shrub; branches erect; leaves alternate linear-lanceolate ; inflores- 
cences axillary to leaves of upper twigs (Madagascar). See p. 431. 
II. CRYPTOCARYEA,. 
14. Cryptocarya R. Br.—Flowers hermaphrodite; receptacle 
long-urceolate accrescent, more or less narrowed in throat. Perianth 
6-leaved, deciduous or more rarely persistent (Cyanodaphne) ; outer 
leaves often smaller. Stamens 12; outer 9 fertile; anthers 2-celled ; 
anthers of first and second rows introrse, anthers of third row ex- 
trorse or subextrorse, 2-glandular at base. Staminodes 3, interior 
oppositipetalous, varying in form. Germen inserted in bottom of 
receptacle. Berry included in and slightly or closely (Caryodaphne) 
adherent to dry or succulent receptacle——Trees ; leaves alternate 
penniveined, more rarely subtripliveined or three ribbed (Caryodaphne); 
bud-scales few; inflorescences axillary or terminal (Zropical Asia, 
Indian Archipelago, Malaysia, Australia, Tropical Africa and America). 
See p. 431. 
15. Boldu Frviti.—Flowers of Cryptocarya. Berry ovate, 
rarely surrounded by non-adherent and dry fragile receptacle, 
which is rarely persistent, usually falling more or less early and 
leaving berry naked supported on thickened pedicel. Other parts of 
Cryptocarya.—Trees ; leaves opposite or subopposite, coriaceous 
penniveined ; buds naked ; inflorescences axillary (Chi). See p. 432. 
16. Ravensara Sonner.—Flowers hermaphrodite (or poly- 
gamous P); receptacle obconical thick concave. Perianth-leaves 6 
free equal, often inflexed at apex valvate. Stamens 12, inserted 
in throat of receptacle and adnate to base of perianth-leaves; 9 
fertile; anthers 2-celled; 6 outer introrse; 3 inner subextrorse or 
