ZYGOPHYLLACE^. 121 



Plate 148, 149. 



GUAIACUM, Plumicr. 



Calyx 5-sepalus, decidims. Stamina 10 ; filament is nudis. 

 Ovarium plus minusve stipitatum, 2 - 5-loculare, loculis 

 8 - 10-ovulatis. Fructus subcarnosus, 2 - 5-locularis, pro- 

 funde 2 - 5-angulatus, angulis compressis acutatis. Semi- 

 nis testa incrassata, carnosa. Embryo in albumine corneo- 

 cartilagineo tenuissime rimoso rectus : cotyledones ovales, 

 marginibus raphen (aximque fructus) spectantes. — Arbores 

 ligno durissimo ; foliis abrupte pinnatis 1 - 7-jugis ; folio- 

 lis coriaceis reticulato-venosis ; fioribus casruleis vel purpu- 

 rascentibus. 



GuAiAcuM, Plum. Gen. p. 79. t. 17. Linn. Gen. 518. Lam. 111. t. 342. 

 Gasrtn. Fr. 2. t. 113. DC. Prodr. 1. p. 706. Adr. Juss. in Mem. 

 Mus. 12. p. 456. 1. 16. f. 7. Lindl. in Bot. Reg. 1839. t. 9. Endl. 

 Gen. 6041. 



Subgen. ? Guaiacidium. — Filamenta basi squamulae brevi 



accrcta. — Folia 5-14-juga. Flores nonnunquam 4-meri 



8-andri. 



liiarnum-Titae Tree. 



Calyx of five (rarely four) ovate sepals, slightly united at 

 the base, imbricated in asstivation, deciduous. Petals as 

 many as the sepals, and longer than they, obovatc, more or 

 less ungniculate, imbricated in aestivation, deciduous. Sta- 

 mens 10, hypogynous, five opposite and five alternate with 

 the petals, shorter than they : filaments subulate or fili- 

 form, naked, or in the subgenus bearing a short membranous 

 scale on the inside : anthers cordate-oblong or sagittate, 

 fixed near the base, introrse, two-celled, the cells opening 

 longitudinally. Pistil of two or five united carpels : ovary 

 raised more or less on a thick stipe or gynophore, two - 

 9 



