RVBIACE^. 



313 



Phitopis has flowers very analogous to those of the preceding 

 genera, especially Gcnipa ; they are surrounded hy hracts covered 

 with silky hairs, like the calyx. The latter is valvate and divided 

 into irregular lobes. 



The corolla, contorted Kotchubea insignis. 



and its throat covered 

 with hairs, bears from 

 four to six stamens 

 with bearded filaments. 

 The two ovarian cells 

 contain each an in- 

 verted triangular mul- 

 tiovulate placenta, and 

 the two terminal lobes 

 of the stvle are short 

 and thick. They are 

 hairy trees of eastern 

 Peru, with flowers in 

 terminal trichotomous 

 cymes. The BraziHan 

 Billiottia has dioecious 

 flowers like those of 

 Amaioua to which it is 

 closely alHed. The 

 corolla, hairy at the 

 throat, is of four or 

 five parts and the ovary 

 is said to be 3-5-celled. 

 The female flowers are 

 terminal and sohtary ; 



the males, in corymbiform cymes. They are pubescent shrubs with 

 intrapetiolar stipules united in a sheath which finally divides.^ 

 Stachyarrhena, from the same regions, also has solitary female flowers 

 and the ovary is divided into a variable number of cells ; but the 



302. Male flower. 



1 We know not whether to preserve distinct 

 or to refer to the genera Billiottia or Amaioua (f), 

 Schachtia, a Columhian tree, with enlarged 

 intemodes, the dioecious flowers of which are 



constructed nearly as those of the types just 

 mentioned ; the males solitary and the females 

 grouped in cymes on short axillary branches. 



