﻿UK. J. MIERS ON THE LECYTHIDACE^. 275 



7. JuGASTRTJM. (Plate XXXV. a.) 



1 



The peculiar features wLicli separate this genus from Lecythis are still more decided 

 than in the two preceding genera ; they have been already amply described {antej p. 167) ; 

 and it is only necessary now to give its generic diagnosis. 



JUGASTRUM, nob 



Lecythis (in parte) auct. 



Calycis adnati sepdla et petala ut in Lecythide. 



orum 



carnosum, 



. « 



imo semiannnlarej subcupulare^ hie ad discum epigynum annularem cum unguibus petalorum 

 interpositis agglutinatum^ et uno latere in ligulam sequilatam expansum^ intus appendiculis nume- 



ligul; 



mversa 



laciniata^ intus appendiculis basilaribus longioribus staminigeris densissime echinata. Stamina 

 parva^ appendiculis insita: filamenta brevissima filiformia; anthertB parvse, ovatse, 2-lob3e, collatera- 

 liter adnatse^ extus longitudinaliter hiantes. Ovarium inferum^ turbinatum^ vertice intra discum 

 planum elevatum^ semper 2-loculare; ovula in quoque loculo plurima^ sessilia^ e basi erecta^ 2-3-se- 

 rialia^ anatropa : stylus brevis^ conicus : stigma minutum^ globosura, papillosum. Pyxidium sub- 



I 



ipalis 



ssepius angusta ; zona superiore suhcirculari 



et deciduo, supra depresse pulvinato vel convexiore^ ssepius umhonato, infra valde concavo, vestigio 

 dissepimenti signato^ cum velario intra marginem prope faucem descendente munito ; pericarpio 

 (operculoque) subtenuiter coriaceo, primum 2-locularij dissepimento mox saepius evanido: semina 

 plurima (10-20) bi- triseriatim basi affixa, erecta, sicca cuneato-cylindrica, pressione acute 3-4-an- 

 gulataj apice truncata et convexiuscula ; testa tenuiter coriacea, extus Isevis^ intus impresso-granosa ; 

 raphe in fibras spirales multidivisa per testam totam immersa ; integumentum internum tenuiter 

 membranaceum, ad testam adbgerens : embryo testse forma, exalbuminosus, cereo-carnosus, cro- 

 cinus, extus guttato-granosus, medio ad angulum ventralem mamilla longitudinaliter fissa sig- 

 natus, homogeneus, neorUza interna cuueato-oblonga apice obtuse truncata, imo subcuneata, 

 medio anguli ventralis plumula prominente mamm^formi marginem fere tegente, extus exorhiza 

 subcrassa undique cincta. [Germinatio ita fit : plumules prolongatio pei 

 nonzontaliter propulsa et in cauliculum squamosum aucta, dein adscendit,i 



fissuram 



basali. radicella dfisnanrlpTis nnnaret : hoc modo planta nova oritur 



Arbores Americce intertropic<s , Lecythidis habitu. 



'- 



4 



I 



1- JroASTOTa COEIACETJM. nob. : ZecytUs coriaeea, DC. Prodr. iii. 291 (non Seem. Bot. 



Her. 126) ; Berg in Mart. H. Br. I. c. p. 491 (tab. 72, fructus) ; Linn, xxyii. 459 : 

 ^chweilera coricwea, Mart. MS. : arbor prooera, ramulis teretibuS, subvahdis, 

 mgoso-striatis, fusco-brunneis, lenticeUato-verruculosis ; foUis majuscuJis, ovato- 

 oblongis vel elongato-oblongis, imo obtusis, apice obtusis vel latioribus et in acumen 



acutum aut obtusulum reourTTilum subito attenuatis, in marginibus subcartUa- 



gineis revolutis pauUo crenuktis. Tel ssepius integrioribus et punctis obsole issune 

 serrulatis. cbartaceis, supra pallide viridibus, pauUo opacis, sub lente nimutissimc 

 granulatis, nervis divarieatis, longs adscendentibus. immersis, reticulatis. costa 

 tenui paullo prominente, subtus f errugineo- vel brunneo-opacis, nervis remsciue pro- 



"Mulis. costa vaKdiore, prominente, sulcata; petiolo fusco, canaliculato, rug 



uloso 



AV I 



