FRIDERICI WELWITSCHII SERTUM ANGOLENSE. 13 
obtusis; petalis obtusis (sepalis subbrevioribus*); tubo stamineo brevi, extus haud 
producto, antheris connectivo dorsali ovato obtuso, appendicem anteriorem ovalem 
integram vel emarginatam superante; capsula coriacea, ruguloso-aspera. 
Habitat sporadica in rupium convallibus umbrosis Distr. Pungo Andongo, ubi prope Presidium ipsum, 
loco dieto “ Barrancos de Catete," Febr. c. alabastris et fructu submaturo, Maio denique iterum cum 
alabastris legi, ad altit. circiter 3500 ped. supra mare.  Exsic. Welw. Iter Angol. no. 889. 
Frutex validus, sive arbuscula, 8-12-pedalis, Zlicis aquifolie habitum quodammodo simulans, rigidi- 
tate omnium partium insignis, sempervirens. Trunculus rectus cortice cinereo-virescente parum 
aspero, ligno albido compacto, ssepius jam ad 3 vel 4 pedes altitudinis supra basim ramosus; rami 
erecto-patuli, laxe ramulosi, cylindrici, adultiores levigati et nitenti-virides ; ramuli novelli plus 
minusve angulati, erectiusculi, firmi et tenaces. Folia alterna, breviter petiolata, rigidicoriacea, 
glaberrima, supra intense viridia, subtus ex albido virentia et prominule venulosa, nunc ovali-ob- 
longa, elongata et acuminata, nune breviora et late elliptica, penninervia, nervo mediano valido 
subtus valde prominente, in petiolo firmo erecto-patula; petioli in uno eodemque ramo longitudine 
variantes, nunc vix semipollicem, nunc plus quam sesquipollicem longi, semiteretes, canaliculati, ad 
insertionem laminæ dorso gibbi ; lamina 7-9 poll. longa, 2-24 poll. lata, basi breviter angustata vel ob- 
tusiuseula, apice acuta vel acuminata, margine argute serrata, serraturis sinu lato obtusissimo sejunctis 
apice rigido-spinulosis, spinulis 1-13 lin. longis, subulatis. Panicule terminales, erectæ, angustæ, 
5-7 pollices longæ, aphylle ; pedunculi communis angulati, sub lente tenuiter velutino-pubescentis 
rami basi bracteis brevibus crassiusculis ovatis muniti, inferiores 1-2 poll. longi, parce ramulosi, ere- 
ctiusculi, superiores sensim breviores, summi brevissimi. Flores (nonnisi in alabastris observati) flavi, 
ceraceo-carnosuli, pedicellati, juxta ramulos pedunculi per fasciculos pauciflores 3— pollicis inter se 
distantes dispositi, ex pedicello ipsis sepius dimidio breviore basi bibracteolato, crassiusculo, angulato, 
arcuatim recurvato nutantes vel fere penduli, vix tres lineas longi. Sepala a basi lata ovato-elliptica, 
erecto-imbricata, concava, obtusissima, margine ciliolata, crassiuscula, rigida, dorso tenuiter pube- 
scentia et sulcato-striata, petalis latiora, in fructu persistentia. Petala juvenilia ejusdem fere figure 
ac sepala, sed iis angustiora et breviora. Stamina descripta. Ovarium glabriusculum ; placente pauci- 
(uni- ?)ovulatæ ; stylus terminalis, rectus, pro more floris crassiusculus, cylindricus, medio quidquam 
incrassatus, apice obtusiusculo stigmatosus, staminibus paullo brevior. Capsula ovoidea, coriacea, 
calyce indurato stipata, extus rubro-purpurea, undique rugulis papillisque aspera, elastice dehiscens, 
3-valvata, 3-sperma, vel placentz unius abortu disperma, valvis cymbimorphis sublignosis, medio 
placentiferis. Semina (vix bene matura) subglobosa vel sublenticulari-compressa, diametro longiore 
circiter 5 lineas longa, pone umbilicum excavatum obtuse rostrata, testa crustacea, levigata, nitidula 
badio-flavescente. Embryo in albumine copioso axilis excentricus, umbilico approximatus ; cotyle- 
dones obovato-ellipticze, planiuseulze, vaginatim conferruminatæ, radicula hilo proxima. 
Ordo BIXACEA. 
Trib. II. ONco2Ez, Benth. et Hook. f. Gen. Pl. 125. 
OxcoBA WeLwrrscHr1, Oliv. Flora of Trop. Afr. MS. (Tab. 111.) Arborescens, inermis, 
glabra; foliis membranaceis, longe petiolatis, ovatis, acuminatis, basi late rotun- 
datis; floribus pedunculatis, ad ramulos annotinos vel vetustiores nascentibus 3-5 
fasciculatis; sepalis 3 late ellipticis; petalis circiter 10 obovatis longiuscule unguicula- 
tis, sepalis plus quam duplo longioribus ; antheris linearibus quam filamenta capillaria 
multo brevioribus; ovario papilloso-setoso, placentis 5-6; stylo gracili longiusculo 
A 
* Floresin nostris sp ib lum bene evoluti et solummodo in alabastris anthesi proximis examinati ; relatio 
pride tr sepala e petala pe cas Steed 
