﻿204 MR. J. MIERS ON THE LECYTHIDACEiE. 



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mctri q[uintam partem alta ; zona superiore Integra, quam inferiore multo angustiore ; 

 operculo pulvinato, valde depresso, centre paullo conrexo, subtus columella fibroso- 

 spongiosa intra faucem crassissima deiu obconica et 4i-snlcata aucto; pericarpio 

 crasso, fibroso-lignoso, cortice tenuissimo pallide brimneo pruinose opaco minute 

 granulato tecto, obsolete 4-loculari. In Nova Granada : v. fr. sice, in Mm. JBrit., 

 Bogota. 



This is Tcry distinct from all others of Peruvian origin. The pyxidium (Plate XLI.) is 



remarkable for its size, shape, lightness of texture, and flattened operculum ; it is 8| in. 



long, 6J in. broad ; the calycary zone, 7 in. from the base, is 7 in. in diam. ; the inter- 



zonaiy band is 1 in. high ; the upper zone and operculum are 4 in. in diam., the latter 



only J in. high, the fibrous base of the attached columella, within the mouth, being 

 ■J in. thick. 



7. Lecvtuis VASiroiiMTR, nob. : plantaignofa : pyxidio vasiformi, infra medium turbinate^ 



iimim versus constricto, truncato, et umbilicato, medio late cylindrico, longe supra 

 medium zona calycari annulari ambitu circuhiii subacutaaut obtusa prominente obso- 

 lete lobata dncto ; Titta interzonal! subdopressa, paullo convexa, diametri 6-lOmam 

 partem alta ; zona superiore intcgra, inferiore multo angustiore ; operculo depressc 

 convcxo, late et obtuse umbonato, inferne columella valde incrassata primum trun- 

 cata dein obconica et 4-sulcata aucto; pericarpio crassissimo, levissime lignoso, 

 brunnco, areolis irregularibus paullo impressis variolate, obsolete 4-loculari, oper- 



culo extus tubcrculato-rug 



seminibus pluribus, late oblongis, obtusis 



laritcr costatis, costis furcatis paullo prominulis, bruuneis, glauco-opacis, minute 

 granulatis. In Brasilia, prov. Rio de Janeiro : v. s. in Mus. Fry. 

 Of this species, rcmaikablc for the extreme lightness of its pyxidium (Plate XLII. fig. 1), 



seen two specimens ; they are 7 in. long ; the calycary zone 5 J-5| in. from the base 



7 in. in diam ; the l)road, much inclined interzonal band is l-l^ in. hij^h, the upper 



d operculum SJ-S J in. in diam., the latter J-f in. high, expanded below by the 



mely incrassated base of the columella, of nearly its diameter, and perpendicular 



\\ in. in thickness, where it fills the mouth, thence narrowing into a short 



1 



obtuse 4-siilcated cone, making it altogether 1| in. long; the pericarp is nearly 

 thick ; the internal space below the upper zone is 4| in. deep, 4-4| in. in diam. ; the 



seeds 1 1 in. long, 1 J in. broad. 



8. Lecvthis amtla, nob. ; planta ignota : pyxidio majusculo, umiformi, cylindrico, imo 



iiemisphserice rotundato, supra medium zona caleyeari undulatim 6-lobata margine 

 acute brcvissimo sursum spectante cincto ; vitta interzonali primum subconcava, 

 dein adscendente, sensim crccta, diametri dimidii altitudine ; zona superiore quani 

 inferiore multo minore, Integra ; operculo vittae fere altitudine, primum convexo et 

 pulvinato, dein late umbonato, solido, subtus columella basi crassissima tunc longe 

 obconica of 4.sulcata aucto ; pericarpio crasso, pallide brunneo, opaco, cortice tenui 

 subrunoso, lenticcllis flavidis granuloso; seminibus oblongis, utrinque obtusis, 



