RUTACEÆ. 429 
and in G@. sanctum, for example, the subulate filaments are not pro-, 
vided with an interior scaly appendage; but this exists in most of 
the species, sometimes whole, sometimes more or less cut at the 
summit. The gynæceum, analogous to those of Zygophyllum, has an 
Guaiacum sanctum. 

Fie. 514. 
Floriferous branch (1). 
2 
ovary with two or three pluriovulate cells in G. offcinale ; but in 
other species, from three to five may be counted. The septicidal 
fruit has also a variable number of shells, with dry wall, more or less 
coriaceous, angular or winged dorsally, each containing a descending 
seed, the coats covering a more or less hard albumen, often wrinkled 
outwardly, enveloping a large greenish embryo, with foliaceous coty- 
ledons and superior radicle. The species of Guaiacum proper are 
trees or shrubs with opposite, paripinnate leaves, formed of two 
or agreat number of opposite, unsymmetrical folioles, accompanied 
by caducous stipules. The flowers are pedicellate, solitary, gemi- 
