332 
avoid confusion with a genus of the same name belonging to 
Bi gnonraceae and described by Bureau in 1868; Butia, however, 
is retained, although Butea, Koeni (Leguminosae, 1795), is a 
us. 
grou p- 
Key ro Cocos AND ALLIED GENERA. 
I. Flores foeminei ovati vel ovato-conici, sepalis acutis vel 
cucullatis, petalis apice valvatis. 
*Spatha superior extus plus minusve profunde plicato-sulcata. 
1. Albumen ruminatum., 
Nucleus 1-locularis, pariete tenui- 
er lignosa, apice ir 
rostrato clausus. Album 
oleosum in medio late cavum. 
Frondium petiolus ad mar- 
gines inermis ... ... Barbosa, Becc. 
Nucleus sealer atti cras- 
sissima ossea. Albumen sic- 
cum in medio anguste cavum. 
Frondium petiolus ad mar- 
gines inermis ... ... Rhyticocos, Becc. 
gaiictee vulgo 1- jocilanis (vel 
nterdum 2-locularis), pariete 
rondium 
petiolus ad margines spinosus. Arikury, Barb.-Rodr. 
to 
Albumen aequabile. Frondium 
petiolus ad margines laevis vel 
fibrosus. 
Nucleus l-spermus, pariete crassa 
ossea intus plicato-gibbosa, 
1 nd 
tum; embryone _basilari. 
Ovarium dense papilloso-pilo- 
sum. Truncus annulatus ... Arecastrum, Becc. 
Nucleus I-spermus, endoca arpli 
Bo mets SIs 
=e eg Sone regular, embryone ee 
eee basilari i+ + Syagrus, Mart. 
