49 



OBSEnvA.Tio. L u c u tn a solo albuminis defeclu ab A c h r a d e 

 (liflTerl, nam spccics aiistralasioae t haracterem e partium nume- 

 ro petitum infringunt , dcmto albuminc ad Lucuma refcrendae. 



96. ACHRAs cosTATA, folils oibovato-ellipticis obtusiusculis costa- 

 tis, pedicellis calycibusque pilosis; floribus pentameris , flla- 

 mentis sterilibus lineari-subulatis , fructu mono - tetraspermo. 



Ferd. Baiier Illustr. pl. Norfolk. t. 161. 



Crescit in insula Norfolk, mense Octobri flo- 

 rens. [Ferd. Bauer.) 



Frutcx an arbuscula ? ramls ramulisque teretiusculis pen- 

 nae columbinae crassitie , basi foliorum lapsu dcnudatis, eo- 

 rundcm clcatriclbus notatis , cortice rugoso cinerascente glabro ; 

 apice follosis, adpressim pubcrulls. Folia alterna approximata, 

 obovato-elliptlca, obtnsluscula, basl repentlne auguslata et. in pe- 

 lioluia dccurrentla, 4 — iV^ P'^1' '<^»"ii;> 1 »Va — »^/a poHicem la- 

 la , corlacca , integcrrlma, ]narginil)us sul)revoluta , glaberrima , 

 nltldula, supra obscurc, sublus lactc viridia, costata ; nervo cen- 

 trall cum pcliolo continuo , supra impresso , subtus late promi- 

 nenle , crassiuscub» , discolori , laleraiibus obllque transversls , 

 alternis et opposlli.s, approximatis , utrlnque promlnulis , intra 

 marglnem comblnatis , ct basibus juxta ncrvum centralem decur- 

 rcntlbus. PetloH 3 lincas longl , basi incrassati , supra canallcu- 

 lati, subtus convcvi , glaberrlml. Flores parum supra ramorum 

 axlllam orti , rarisslme solltaril v. bini , plerumque terni , ncmpe 

 2 collaterales, tcrtio supcrposlto, nunquam plures. Pedlcelli ebrac- 

 teati , 3 — 4 liucas longl , angulati, aplce Incrassati , pllis brevi- 

 bus adpressls fusccscentibus obsiti , florlferi cernui , fructlferi 

 strlcti. Calyx pedlccllo continuus, a^/jlineam longus , constan.s 

 foIIoIIsS, ovatls , obtusls, concaviusculis , pilosls , pills juxta 

 marginem et apicem longloribus densiorlbusque ; follola 2 exte- 

 riora, 3 interlora, uno rellquis paullo minori. Torus brevissimus, 

 .stlpltlformis , obsolete pentagonus. CoroUa glabra , ovalo - vcn- 

 trlcosa, calyce dimldio longior, usque ad mcdium qiilnqucfi- 

 da, lobis ovato-oblongis, obtusis, erecto - conniventibus , summo 

 apice infracto-patentibus , mai'gine subtllisslmc crcnulatis , im- 

 brlcatis. Stamina 10, corollae inserta , 5 sterilia, Ilneari - subii- 

 lata , acuta, lobis triente breviora ilsque altcrna , totidem ferti- 

 lla paullo profundlus inserta , sterilium altitudine, lobls oppo 

 sila. Antherae extrorsae biloculares , ovatae, acutiusculae , me- 

 dio dorso affixae , loculls oblique appositis , longltudinalitcr de- 

 hi.scentibus. Ovarium summo toro Imposltum , depresso-vcntrico- 

 sum,piIosum. Stylus termlnalls teretiusculus , e basl dilatata api- 

 ccm versus sensim attenuatus , antheras altitudine paullo supe- 

 rans, stigniate obtuso. Fructus plerumque solitaril , baccatl, nu- 

 cis juglandls magnitudine , styli rudhnento fillforml^ pcrsislente 

 supcratae, calyce allquantlsper ampliato basi exccpti , nunc glo- 

 bosi tetraspermi , nunc oblongi dispennl , saepissime inacqul- 

 latcri monospernil. Nuces (nauci Giirtn.) osseae , lacvigatae, sc- 

 miovatae, basi acutiores , apice obtusae , dorso convexae , late- 

 ribus depressiusculac, facie complanatae , derasae ; bllo propc 

 baslm ovato impresso. Nucleus nauci cavitatcm cxplens. Albu- 

 men carnosum parcum , facilc in lobos duos longitudinalcs scj)a- 

 rabile. Embryo orthotropus axills, cotyledonlbus follaceis ovalo- 

 oblongis obtusls , basi nonnihll emarginatls : radicula obtusa , co- 

 tyledonibus quadruplo brevlore, fructus basim spectante. 



4 



