Original material of five Aichryson species described by Carl Bolle in 1859 has been traced in the Berlin herbarium (B). Out of this material, lectotypes of Bolle's names Aichryson bollei, A. parlatorei, A. pachycaulon, A. parviflorum and A. porphyrogennetos are chosen.
References
Anonymous 1976: Sporae atque semina plantarum spontanearum ac subspontanearum quae Insulis Canariensibus inveniunter in loco natali lectae. — Index seminum (La Orotava) 1976: 5–18. Google Scholar
A. Bañares
1990: Híbridos de la familia Crassulaceae en las Islas Canarias. Novedades y datos corológicos II — Vieraea 18: 65–85. Google Scholar
C. Bolle
1859: Addenda ad floram Atlantidis, praecipue insularum Canaliensium Gorgadumque I. — Bonplandia 7: 238–246. Google Scholar
D. Bramwell
1968: Notes on the taxonomy and nomenclature of the genus Aichryson. — Bol. Inst. Nac. Invest. Agron. 28(59): 203–213. Google Scholar
D. Bramwell
1969: Notes on the distribution of some Canarian endemic species. — Cuad. Bot. Canar. 7: 5–12. Google Scholar
D. Bramwell
1977: The subspecies of Aichryson pachycaulon Bolle (Crassulaceae) and their probable origin. — Bot. Macaronésica 4: 105–111. Google Scholar
D. Bramwell
&
Z. Bramwell
1990: Flores silvestres de las Islas Canarias. — Madrid. Google Scholar
P. Hiepko
1987: The collections of the Botanical Museum Berlin-Dahlen (B) and their history. — Engiera 7: 219–252. Google Scholar
L. R. Praeger
1932: An account of the Sempervivum group. — London [Reprint: Pl. Monogr. Reprints 1, 1967, Lehre]. Google Scholar
P. B. Webb
&
S. Berthelot
1841: Histoire naturelle des Iles Canaries 3(2). Phytographia canariensis 1. — Paris. Google Scholar