BIXACEÆ. 
293 
less divided and subdivided into branchlets the extremity being stig- 
matiferous. 
In the ovary are seen five more or less prominent 
parietal placentas, bearing an indefinite number of anatropous 
ovules.! 
The fruit is a berry, the pulp containing numerous seeds. 
These are formed of thick coats, particularly the middle one? which 
cover a fleshy albumen, enveloping an axile embryo, with cylindrical 
radicle and oblong foliaceous cotyledons, digitinerved at the base. 
Certain Papayads, distinguished under the name of Vasconcella’ 
(figs. 337, 338), differ from the preceding, in that their corolla is 
Papaya (Vasconcella) quercifolia. 

Fia. 337. 
Male inflorescence. 
Fie, 338. 
Patulous corolla of male flower. 
oftener valvate, and their ovary divided to a variable height, into 
five more or less incomplete lobes, each presenting a placenta upon 
its dorsal wall. 
The Papayads are trees or shrubs of tropical America, of which more 
thantwenty species’ are known. All their organs contain a milkyjuice.’ 

1 Disposed in two or a greater number of 
series, They have two envelopes, and long 
remain cylindrical elongated, phalliform, At 
the adult age their funicle, which serves to direct 
the pollen tubes towards the micropyle, often 
thickens on the face of the latter. 
2 It is often of a suberose consistence, and con- 
tains a milky latex; it is enveloped by a mem- 
brane often described as an adherent aril. 
(Jacq. F., Eclog., 101).—J. G. AGarpu, Theor. 
Syst. Pl., 379.—B. H., loc. cit.). The testa is 
coriaceous, or crustaceous, with exterior surface 
smooth, rugose, or bristling with prickles. 
3 A. S. H., Deux Mém. sur les Résédac., ‘ii. 
13, in Mém. Soc. Roy. d'Orléans, i. 12.—ENDL., 
Gen., n. 5120.—Payer, Fam. Nat. 119.— 
Zasconcellea A. DC., Prodr., 414. — Vascon- 
cellia B. H., loc. cit. 
4 JacQ., Hort. Schenbr., iii. t. 309-311.— 
Jacq. F., Æclog.,t. 68, 69.—AUBL., Guian., ii, 
t, 346.—VELLOZ., Fl, Flum., x. t. 130—-133.— 
Hoox. & ARN., Beech. Voy., Bot., 425, t. 98.— 
Desr., in Ann. Mus., i. 273, t.18 (Vasconcella).— 
Parr. & Enpz., Nov, Gen. et Spec, ii. t. 182.— 
Wieut, Il, t. 106, 107.—Derse., Fl. Méd. 
Ant., i. t. 47, 48.—C. Gay, Fl. Chil., ii, 413, t. 
25.—A. Gray, Amer. Expl. Exp., Bot., i. 640. 
—Enrnst, in Seem. Journ. of Bot, (1866), §1.— 
Miq., Fl. Ind.-Bat., i. 697.— Bot. Reg., t. 499. 
—Bot. Mag., t. 2898, 2899, 3633.—Watp., 
Rep., ii. 205 ; Ann., ii. 649; iv. 868. 
5 It is covered with prickles in the Jaca- 
ralia, as well as the branches, petioles, Ke. 
