PITTIER—PLANTS FROM COLOMBIA AND CENTRAL AMERICA, 99 
THE ARTOCARPOIDEAE-BROSIMEAE OF TROPICAL AMERICA. 
The tribe Artocarpoideae-Brosimeae is consequently represented 
in tropical America by 3 well-established genera, viz, Brosimum 
Swartz (type B. alicastrum Swartz); Piratinera Aubl. (type 
P. guianensis Aubl.); and Lanessania Baill. (type Z. turbinata 
(Spruce) Baill.). In the last genus the receptacle has more or less 
the shape of an inverted bell, flat at the apex and bearing in the 
center a single female flower, this surrounded with numerous male 
flowers, which are 2 or 3-staminate; on the outside the receptacle 
is distinctly covered with small involucral bracts. Trymatococcus 
Poepp. & Endl. (type 7. amazonicus Poepp. & Endl.) with a globose, 
ebracteate receptacle, bearing at the apex one female flower and 
many 3-staminate male flowers, should also be placed in this divi- 
sion of the Moraceae, rather than with the herbaceous Moraceae- 
Dorstenieae. In the latter the stamens are supposed to be inflexed 
in prefloration, while they are always erect in the Artocarpoideae- 
Brosimeae, a detail which has not, as far as I know, been determined 
with reference to the above genus. 
CHARACTERS OF THE GROUP AND KEY TO THE GENERA. 
Receptacle globose, subglobose, or turbinate, with numerous male flowers and 
1, 2, or several female flowers. 
Female flowers 2 or more. Receptacle turbinate; male flow- 
ers 1-staminate, with a monophyllous perianth_____- 1. PIRATINERA. 
Female flower single. 
Stamen 1 in each male flower. Receptacle globose, en- 
tirely covered with flowers and orbicular scales; 
male flowers without a perianth ____.__________ 2. BROSIMUM. 
Stamens 2 or 3 in each male flower, this provided with 
a perianth. 
Receptacle globose, ebracteate, with flowers on the 
flat apex only; stamens always 8________-__- 3. TRYMATOCOCCUS. 
Receptacle turbinate, bracteate on the outside; sta- 
mens 2 or 38_------------------------------ 4, LANESSANIA. 
CHARACTERS OF PIRATINERA AND LIST OF SPECIES. 
Piratinera Aubl. Pl. Guian. 2: 888. pl. 340. 1775. 
Perianth of the male flowers short, tubular, split laterally; stamen 1, the 
anther 2-celled. Female flowers 2 or more, without a perianth, the ovary sunk 
into the receptacle, with short style and divaricate stigmas. Fruit globose, 2 
or several-seeded. 
Laticiferous trees or shrubs; leaves coriaceous, small, short-petiolate, entire; 
stipules small, lanceolate, caducous; receptacles pedunculate, usually solitary 
in the axils of the leaves, turbinate with a convex or plane surface or semi- 
globose; flowers intermixed with numerous orbicular, peltate bractlets. 
Type species, Piratinera guianensis Aubl. 
