M. H.  Buys, ?A morphological cladistic analysis of Lobostemon (Boraginaceae)?, South African Journal of Botany, vol. 72. pp. 383 - 390, 2006.

M. H.  Buys and Nordenstam, B., ?Nomenclature and typification of J.G.C. Lehmann and H. Buek names in Lobostemon (Boraginaceae), with enquiries into the contributions by O. Swartz and C.P. Thunberg?, Taxon, vol. 58, pp. 627 - 637, 2009.

M. H.  Buys and Nordenstam, B., ?De Candolle's Prodromus: the role of father and son in relation to names in Lobostemon (Boraginaceae) and typification thereof?, Candollea. 2010.

I. M.  Johnston, ?Studies in the Boraginaceae 25. A revaluation of some genera of the Lithospermeae?, Journal of the Arnold Arboretum, vol. 3424. pp. 258 - 299, 1953.

I. M.  Johnston, ?Studies in the Boraginaceae 26. Further revaluations of the genera of the Lithospermeae?, Journal of the Arnold Arboretum, vol. 35, no. 1. p. 81, 1954.

I. M.  Johnston, ?Studies in the Boraginaceae 27. Some observations concerning the Lithospermeae?, Journal of the Arnold Arboretum, vol. 34. pp. 258 - 299, 1954.

M. H.  Buys and Van der Walt, J. J. A., ?A new species of Lobostemon section Grandiflori (Boraginaceae) from South Africa?, South African Journal of Botany, vol. 6224, no. 1. pp. 31 - 35, 1996.

M. H.  Buys and Van der Walt, J. J. A., ?Lectotypification of the names of Linnaean Echium species now in Lobostemon (Boraginaceae)?, Taxon, vol. 4524. pp. 515 - 517, 1996.

M. H.  Buys and Van der Walt, J. J. A., ?Lobostemon daltonii (Boraginaceae): a new species from the Western Cape, South Africa?, South African Journal of Botany, vol. 6524, no. 2. pp. 144 - 148, 1999.

M. H.  Buys, ?The stigma and style of Lobostemon (Boraginaceae) and their systematic implications?, South African Journal of Botany, vol. 6724. pp. 47 - 52, 2001.

M. H.  Buys and Hilger, H. H., ?Boraginaceae cymes are exclusively scorpioid and not helicoid?, Taxon, vol. 5224, no. 4. pp. 719 - 724, 2003.

M. H.  Buys, ?The systematic value of the leaf indumentum in Lobostemon (Boraginaceae)?, Bothalia, vol. 35, no. 1. pp. 93 - 99, 2005.

M. H.  Buys and Nordenstam, B., ?De Candolle's Prodromus: the role of father and son in relation to names in Lobostemon (Boraginaceae) and typification thereof?, Candollea. 2010.