Linruean Society. 



the two faces of the dissepiment, and the fruit forming a small oval 

 drupe, containing a single osseous indehiscent nut, which is 1 -celled 

 by abortion, and contains only a single pendulous seed entirely filling 

 its cavity, and consequently quite apterous, oval, with a small thick 

 superior radicle and two plano-convex fleshy cotyledons. This was 

 discovered by Mr. Miers on the skirts of the eastern declivity of the 

 Andes, near Mendoza, on the margin of the desert tract called 

 •' La Travesia," where it was also found by Dr. Gillies, Its cha- 

 raqt^jc&iu'e as follows : — .... ^^ ;.■.... ... . _ 



:0 IfifflOof, „ ,,. : BJ5 .RO-^S^^yn-O ^O 873:tOB'LerlO 



Char. Gen. Ca^^/a; gamophyllus, 5-dentatus, persistens. CoroZ/a gamo- 

 petala; tubo cylindrico, calyce 2-3-plove longiore, vix gibbo ; limbo 

 J brevi, .5-lobo, subbilabiato, lobis rotuudatis; labio inferiore 3-lobo, lobis 

 paululo majoribus, siiperiore bilobo, in aestivatione imbricativ{\ semper 

 exteriori. Stamina 5, coroUae lobis alterna, quorum 4 didynama, 

 quinta superior brevissima ananthera ; 2 inferioribus longioribus fancem 

 attingentibus, 2 lateralibus illis tertio brevioribus ; fdamenta paulld 

 supra basin tubi iriserta, filiformia, glabra ; anthercs rotundatas, reni- 

 formes, cordatse, 2-loba?, connectivo dorsali cordiformi adnatae et huic 

 in medio loborum anticifixse, lobis ovalibus divaricatis antice lon- 

 gitudinaliter dehiscentibus. Ovarium oblongum, pilosum, glandula 



■ annulari brevi 5-lob^ glabr^ cinctum, 2 loculare ; ovalis in quoque 

 loculo circiter 6, superne per paria collateralia, e dissepimenti nervo 

 longitudinaH seriatim appensa. Fructus subbaccatus, calyce immutato 

 clausus. Nux ovata, acuta, 4-sulcata, apice 4-denticulata, 1-locu- 

 laris, 1-sperma. Semen loculo confonrie, latere superiori fuiiioulo 

 brevi appensum ; testa chartacea, favoso-i*eticulata ; endopleura mem- 

 branacea. Ejnbryo exalbuminosus ; radiculd superiori, crass^, apice 

 mamillajformi ; cotyledonibus illd triplo longioribus, ovatis, plano-con- 

 vexis, valde crassis. — Arbuscula Mendozensis, vix non aphylla, sjnnosa, 

 rarnosissima, glaberrima ; ramis nitidis, erectis ; fioribus paucis, aggre- 



' gatis, parviuscidis; corollvc ccerulescente. • - 



■ OXYCLADUS APHYLLUS (v. V.). "'^ UynilKlk B'lJni ,80qOX) 



Hab. prope Mendoza, ad pedem Oriehiia^ 'S^aili^^^'^Hfl^ium. 

 ■^" Vernac. Ala. ' '^^"1*^ ji)iic>{OJi(i^d ^ijicludnr^ 



For the reception of this curious genus, Mr. Miers has found it 

 necessary to constitute a new tribe of the Order to which it belongs, 

 which he subdivides as follows : — ' ,'isv^3\ ,Vi >yr< 



BiGNONIACEiE. , 



; ■^,Tfi^*.iiv^ BiGNONiE^. Capsula dehiscens, 2-locularis, 2-valvis; seminibus 

 . , numerosis alatis compressis, dissepimento utrinque affixis. Embryo 

 ., , cotyledonibus complanatis foliaceis. 



^Trib.2. Crescentie^. jP/mc^?/s drupaceus, lignosus, 2- vel plurilocu- 

 laris; seminibus numerosis alatis v. compressis. Embryo cotyledoni- 



u bus compressis carnosis. 



Trib. 3. Oxyclade;e. Fructus drupaceus, nucem unlearn 1-locularem 

 j.|j,,ilindebiscentem includens ; semine solitavio suspenso rotundato. Em- 



»/:),i^rj/o radiculS, superiore; cotyledonibus magnis fere hemispbaBricis car- 



' riosis. 



Figures of both genera with detailed dissections accompamed the 

 paper. *tJ4*iJ»«ij{ij^v> wot u kiiii/ ai^iujoliii {.iqturi mii'dd uiuh&io oiU 



