colpatae vel ulceratae vel poratae sive tetradae in pollinia 
farinosa aggregatae; stigmata 2 vel 3, separata vel con- 
fluentia, tertium rostellum formans. 
Typus: Ophrys Nidus-avis L. 
Subfamilia Ophrydoideae Garay subfam. nov. 
(Plate XVIII). Flores zygomorphi; perianthii partes 
dissimiles; columna saepa parva, cylindrica; antherae 
vulgo singulae, raro duae, thecis parallelis; microsporae 
tetradae semper in pollinia grosse granulosa aggregatae; 
stigmata 2 vel 3, semper confluentia, tertium saepe ob- 
literatum, nunquam rostellum formans. 
Typus: Orchis morio 1. 
Subfamilia Kerosphaeroideae Garay subfam. nov. 
(Plate XIX). Flores zygomorphi; perianthii partes 
dissimiles; columna valde evoluta; anthera incumbens 
vel dorsaliter reclinata, singula; microsporae tetradae in 
pollinia valde compacta aggregatae; stigmata 2, conflu- 
entia, tertium semper in rostellum modificatum. 
Typus: Mpidendrum ciliare L. 
ACKNOWLEDGMENT 
Part of the research upon which this paper is based was 
made possible through a grant from the National Science 
Foundation which is gratefully acknowledged. 
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