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 416 ON THE STRUCTUEE OF

culoque simul elongato extra medium arete reciirvato et incrassato.

Pericarpiiim, bracteis, calyce, apiceque patelliformi styli- gero colunnia3 clelapsis, deimdatum, omiiinb supemra vel liberum, subovatum caniosmn crassum alte rimosiim inde- hiscens, cavitatibus sicut in ovario indefinite nmnerosis in- ordinatis amorphis polyspermis.

Semiiia pedicellata, funiculi dimidio inferiore cylindraceo cellulari molli pallido : superiore maxime incrassato arete recurvato subovato castaneo lacunoso solido duro. Semen 'qmmi ovatum vix diametro apicis dilatati funiculi, castaneum alte lacunosum.

Integumentum exterius crasso-crustaceum subnucamen- taceum ; interiiis membranaceum pallidum lacunis exterioris leviter impressum.

Albumen magnitudine integumenti interioris laxe cellulo- sum aqueo-pallidum.

Embryo e cellulis subduplici serie ordinatis iis albuminis majoribus constans, ex apice albuminis ortus, ejusque dimi- dio longior.

��HYDNORA AERICANA.

Hydnora africana, Thunb. in Act. Holm. (1775), vol. xxxvi, p. 69, tab. 2. U. Meyer in Nov. Act. Acad. Ccesar. Nat. Curios, vol. xvi, par. 2, p. 775, tab. 58.

Planta Aphyteja, Besp. Acfiar. cum. tab. (1776). Amcen. Acad. vol. viii, p. 310.

Apbyteia Hydnora, Harv. Gen. South Afr. p. 299.

Loc'. Nat. Africa Australis parasitica in radicibus Eu- pliorbiae succulentse cujusdam secundum Thunberg et Drege; et quandoque Cotyledonis orbiculatse auct. D. Mundt in Harvey, South Afr. Gen. p. 299. Nuperrimc etiam in Africa boreali detecta, fid. sp. asserv. in Museo Parisiensi.

Desc. Primordia sunt Caules e dilatata radice plantae sus- tinentis orti, humifusi v. ssepius semisepulti, angulati (4-5-6- goni) digitum crassi simplices v. saepius ramosi, solidi an-

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