Fig. 1.
a Guadua inermis pseudospikelets. b Otatea acuminata, spikelets. c Phyllostachys aurea, pseudospikelets. d Lithachne pauciflora, male and female spikelets (floral structures of the other three species are bisexual). Note that photos (a, b and c) represent the actual specimens collected for this study. Photo (d) represents a separate individual of the same species. Photos by E. Ruiz-Sanchez