Cereus-validus schreef
Most authors are proud of their work.

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So, your heart would beat prouder to see a list like this ?

Jankalski, S.
Sansevieria erythraeae.
Sansevieria 9: 18-21 (2004)

Sansevieria versus Dracaena.
Sansevieria 8: 17-18 (2003)

Sansevieria as a genus.
Sansevieria 7: 7-8 (2003)

Sarcopilea, a little-known succulent.
Cact. Succ. J. (USA) 72(6): 313-314 (2000)

"Crown of Thorns" hybrids: past and present.
Cact. Succ. J. (USA) 72(4): 202-204 (2000)

The names for the Spanish Sempervivums.
SempWorld 1(4): 1-4 (1993)

A closer look at the genus Orostachys.
SempWorld 1(3): 1-4 (1993)
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BTW, its not a simple cut and paste.

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Copy-and-paste
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Also you don't know which databases were searched.

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I am going by the assumption that 1 + 1 = 2
But I guess it looks like higher math to you.
PvR