56 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



ad bracteam adnatae, itaqiie bracteam tripartitam vel trifidam 

 vel divergente tridentatum formantes. Calyx 2-partitus; lobi 

 concavi, ad capsulam non adpressi. Corolla cyanica, profunde 

 2-labiata, marcescens et persistens; labium superius exunguicu- 

 latum, inferius cum limbo a margine calcaris oris abrupte reflexo; 

 palatum, margine crasso calcaris oris excepto, nullum; calcar cum 

 limbo parallelum vel breve et saccatum. Antherae bilobatae. 

 Capsula globosa, stylo persistente rostrata. 



Species typica, Calpidisca capensis comb. nov. {Utricularia 

 capensis Spr.) 



There are about 60 species of this genus, mostly confined to 

 tropical regions and extratropical South Africa. In many of the 

 species the leaves and bladders are evanescent, disappearing before 

 the flowers are developed; indeed, in some of the species the 

 leaves and bladders are quite unknown. In all species in which 

 the bladders are known, they are distinctly urceolate, and the 

 name Calpidisca is derived from two Greek words meaning urn 

 and disc. A considerable proportion of the described species, 

 especially the American ones, have been collected only once or 

 twice, and the group needs much critical study. This is par- 

 ticularly true of several Brazilian species with hippocrepiform 

 connectives, otherwise more or less intermediate between Cal- 

 pidisca and Orchyllium, and doubtless eventually deserving generic 

 segregation. 



The type species and several related ones were beautifully 

 figured in the 28th volume of "Hooker's Icones plantarum" 

 {pi. 2'jg3-2'jQj); the illustration presented herewith is of a Mexi- 

 can species, Calpidisca denticulata comb. nov. {Utricularia denti- 

 culata Benj.). 



11. Avesicaria (Kam.) gen. nov. ( Utricularia § Avesicaria 

 Kam. 1893.) Herbae scaposae aquaticae, ad rupes in aquo 

 fluitante per tenacula radiciformia adhaerentes, radicibus veris 

 nullis. Scapus squamatus, bracteatus, 2-multiflorus; squamae 

 peltatae, saepe cum ramis tenuibus natantibus axillaribus, folia 

 tenuiter dissecta ferentibus; bracteae peltatae; bracteolae nullae. 

 Calyx 2-partitus; lobi concavi, basin capsulae amplcctentes. 

 Corolla valde 2-labiata; palatum semilunare, ad basin labii inferii; 

 calcar saccatum. Placenta hemisphaerica, supcrficiei antcriore 

 convexa ovulifera. Capsula subglobosa, stylo persistente apicu- 

 lata. 



Species typica, Avesicaria neottioides comb. nov. {Utricularia 

 neottioides St. Hil. & Girard). 



