122 MANN, 



2. I. LOXGIFOLIUM Gray. (Enum. No. 14.) Shrub 6 high, more 

 or less, and glabrous throughout, with few stout branches, roughened 

 With the scars of the fallen leaves, and above with the persistent stip- 

 ules. Leaves clustered, coriaceous, 6'- 8' long, ]'-2i' wide, obovate- 

 lanceolate, acuminate or rarely obtuse, acute at the base, reticulated- 

 veiny, the midrib prominent beneath ; the margins obscurely reparid- 

 undulate or serrulate. Petioles '-!' long. Stipules, sepals, petals 

 and stamens much as in No. 1. Filaments subulate-linear, flattened, 

 about the length of the anthers. 



With the preceding species. 



3. I. LAURIFOLIUM Gray. {Enum. No. 15.) Branches rather stout, 

 entirely glabrous, as is the whole plant. Leaves coriaceous, oblong-lan- 

 ceolate, somewhat narrowed at both ends, obtuse at the base, 3' long, 

 1' wide, sparingly and obscurely repancl-serrulate, or entire, very short 

 petioled, shining above, pale beneath. Petioles only l"-2" long, sel- 

 dom longer than the stipules. Pedicels a line long, 2-bracted. Flowers 

 mostly like those of the preceding species ; except that the sepals are 

 lanceolate and much narrower. 



With the prccading species. 



ORDER VII. BIXACE^E. 



The type is the Arnotto, Bixa Orellana, a tree cultivated for the red 

 Coloring matter of the pulp which surrounds the seeds. Our only wild 

 plant of the order is of a genus which is distinguished from all relat- 

 ed orders having a one-celled ovary with 2 or 3 parietal placentae, 

 especially from the last aud the next. by being dioecious and apetal- 

 ous. 



1. XYLOSMA Porst. 



Sepals 4 or 5, scale-like, often ciliate, imbricate. Petals none. 

 Stamens indefinite ; anthers versatile, short. Ovary raised on an an- 

 nular disk. Placentae 2, or rarely 3 -G, parietal, 2- few-ovuled. Utyle 

 entire or more or less divided, crowned by the obtuse stigmas, or some- 

 times the stigma subsessile, broad and lobed. Berry indehiscent, small, 

 2-14-seedcd. Seeds obovoid, somewhat angular by mutual pressure, 

 smooth, crustaceous ; embryo straight, cotyledons flat. Trees, often 

 spiny. Leaves toothed or entire. Flowers clustered in the axils, or 

 rarely shortly racemose. 



Genus of several species, scattered through tropical and subtropical regions. 



1. X. HAWAIEXSE Seemann. (Enum. No. 16.) Shrub 5-10 high, 

 unarmed, glabrous. Leaves coriaceous, ovate or ovate-oblong, obtuse 



