88 



distat. Blackbiirnia monadelpha Roxh. Fl. ind. I. 455. 

 alibi verisimiliter collocanda. 



147. BLACKBURNiA piNNATA Forst. prodr. n. 63, 



Ptelea pinnata Linn. f. suppl. 126. 

 Samara Blackburnia Spreng. syst. I. 141. 

 Ferd. Baiier Il.lustr. pl. Norfolk. t. iSy. 



Crescit in insula Norfolk, mense Octobri flo- 

 r e n s. [B^orsf. Ferd. Bauer.) 



Arbor 2o pedum altitudine , cujus ramulos videmus teretes, 

 cortice fusco rugoso , novellorum nigricante. Folia alterna v. 

 opposita, abrupte pinnata, bi- tri- v. rarius quadrijuga , foliolis 

 oppositis. Petiolus communis quinque polliccs longus , e basi 

 incrassata teretiuscula obsolete tctragonus, glaberrimus , post. 

 lapsum cicatricem ovato-ellipticam rclinquens. Foliola opposita, 

 breviter petiolulata , ovata , acuminata , glaberriina , inlegerrima, 

 4 poUices longa, 2 pollices lata , inaequiialera , lateris superioris 

 brevioris circuniscriplione multo magis convexa, apice intcrdum 

 supra latus inferius producta , medio plerumque v. prope apicem 

 undulato-contracla. ]Vervus foliorum principalis supra canaliculatini 

 impressus , subtus con\ exiuscule promini-ns, secundarii oppositi 

 etalterni, oblique adscendentcs, prope marginem bifurcati , re- 

 ticulatim connexi. Flores in paiiiculis uni - bipolliiaribus, axillari- 

 l)us v. folioruin abortu in ramulis terniinaiibus, conlerli, minuli. 

 Pedunculi pcdiccllique glabriusculi , lielielatc lctragoni , bractcis 

 miniinis caducis munili. Pcdiiclli brc\ issiini 2 — 3 lineas longi, 

 crassiusculi ; paullo supra basiin articulali: ibique bracleola mi- 

 nima triangulari stipati. Calyx luinimus giabcr, lierbaceo-viridis, 

 profunde quadridenlatus , dcnlibus triangularibus in aestivatione 

 valvatis, in anlhesi palulis. Pclala 4 liypogyna , denlibus calycinis 

 allcrna iisque duplo longiora, glauco-viridia, crassiuscula carnosa, 

 circumscriplione ovala, acuminata, naviculari-concava , in aesti- 

 vatione valvalim iiiduplicala, cum apicis aciimine inflexo; tandem 

 patenlia. Stamina in floribus feinineis omnino nulla, in inasculis 

 4, hvpogyna , dentibus calycinis opposila Filamenla bre\ issiiiia, 

 subnulla. Anlherae primum connivcnles , scrius palulae, jielalo- 

 rum fere longiludinc, ovato - cordatae , apice noniiihil a laleie 

 comprcssac, abruplim acumiiiatae ; coniicrli\um dorsale latiiisf^u- 

 lum, filamento conlinuuiu; loculi aj)posili paralleli , latere e\lc- 

 riori nonnihil longiorcs, longitudinaJitcr dehisccnles. l^istilli ru- 

 dimentiim coniium lcreliusculum stamina loiigiludine aeqiiaiis in 

 fIoril)us masciilis ; in feinineis in eadein panicula maribus mixlis, 

 ovarium ccnlrale, gynoj)horo brcvissimo suslentum , ovalo-glo- 

 bosuni , petalis diinidio brcvius , unilocularc^ apice in styliim 

 brcvissimtim attcnuatum Stigma oblusum. Ovuliiin iinicum ( .') 

 cavitatis lateri j)ropc aj)iceni ojie funiculi brevis appensum. Cap- 

 sula globosa cerasi luagniliidine coriacea , sordide purj)urca, 



{)unctis luteis oonspersa , maluritate a vertice usqiie ad incdium 

 lians , semen alterius lateris apici adfixum hori/.ontaliter propel- 

 lens. Seinen gIol)osuin, pisi inajoris magniludine, apici valvulae, 

 ope funieuli brevissimi alI1\um, latere eandcm capsulae parielem 

 respicienle rhaphe lililbrmi allcram ejiisdein e\tremilalein attin- 

 genlepercursum. Inlegiimcnliim liiplcx : epidermis atra cariiosula, 

 sicca, splcndens, facile derasilis ; testa ossea, iinam lincain crassa ; 

 endopleiira mcmbraiiacea leniiis, teslae perlinaciter adhaeiens. 

 Kucleus seinini conformis. Albumen copiosiim, caruosum. llm- 

 bryo viridis , in aii albumini» jiaruin obliquiis ; colyledonibus 



