Compactum, 3-4 cm altum; rami primarii 4-6 mm diam.; ramuli floriferi 6-foliati, internodiis invisis; folia matura supra visa spathulata, valde obliqua, saepius abrupte acuta, apiculata, lat. visa superne leviter ampliata, supra saepe concava, dorso rotundata, integra vel rarius margine altero obscure 1-lobulata, sordide olivaceo viridia, punctis crebris prominentibus, 1.8-2.2 cm longa cum vagina 2-3 mm, 7-8 mm lata, ad 5 mm diam.; flores suaveolentes, per noctem expansi, subsessiles vel pedunculi demum ad 1 cm longi, superne gradatim ampliati; receptaculum subglobosum, 5 mm longum, ad 7 mm diam.; sepala 5, in flore bene expanso reflexa, exteriora 6-7 mm, interiora 7.5-9.5 mm, longa, marginibus 3, angustis; petala 3-4-seriate, breviera pauca, laxissime disposita, reflexa, patentia, et adscendentia, acuta vel obtusa, inferne saepius angustata, lutea, 6-10 mm longa, fere ad 1 mm lata vel rarius ultra; filamenta erecta, exteriora epapillata, interiora basi inconspicue papillata, cum antheris pollineque lutea, ad 9 mm longa; glandulae permagnae, fere contiguae, intus valde concavae, obscure crenulatae, sordide luteo virides; ovarium profunde concavum, medio vero lobatum, lobis per 0.5 mm elevatis.
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