Literatur

@book{cullen2011european,

title = {The European garden flora flowering plants: a manual for the identification of plants cultivated in Europe, both out-of-doors and under glass},

author = {James Cullen and Sabina G Knees and Suzanne H Cubey and JMH Shaw},

year  = {2011},

date = {2011-01-01},

urldate = {2011-01-01},

volume = {1},

publisher = {Cambridge University Press},

keywords = {Huernia macrocarpa, Huernia namaquensis, Huernia thuretii, Stapelia glanduliflora},

pubstate = {published},

tppubtype = {book}

}

@book{albers2002illustrated,

title = {Illustrated Handbook of Succulent Plants: Asclepiadaceae: Asclepiadaceae},

author = {Focke Albers and Ulrich Meve},

year  = {2002},

date = {2002-01-01},

urldate = {2002-01-01},

volume = {4},

publisher = {Springer Science \& Business Media},

keywords = {Cynanchum perrieri, Echidnopsis cereiformis, Huernia erinacea, Huernia hystrix, Huernia keniensis, Huernia longituba, Huernia macrocarpa, Huernia namaquensis, Huernia pendula, Huernia piersii, Huernia plowesii, Huernia procumbens, Huernia quinta, Huernia rosea, Huernia schneideriana, Orbea schweinfurthii, Orbea wissmannii, Stapelia glanduliflora, Stapelia hirsuta, Tavaresia barklyi},

pubstate = {published},

tppubtype = {book}

}