Balderis, E., C. M. Guilliams, K. E. Hasenstab-Lehman, M. E. Mabry, and M. G. Simpson. 2019. Amsinckiinae Working Group: Nutlet diversity of Amsinckiinae
in western North America. Poster (pdf; png) presented at Botany 2019. Tucson, Arizona.
Chacón, J., F. Luebert, H. Hilger, S. Ovcinnikova, F. Selvi, L. Cecchi, C. M. Guilliams, K. Hasenstab-Lehman, K. K. Sutorý, M. G. Simpson, and M. Weigend. 2016.
The borage family (Boraginaceae s.str.): A revised infrafamilial classification based on new phylogenetic evidence, with emphasis on the placement of some
enigmatic genera. Taxon 3: 523-546.
Guilliams, C. M., B. A. Veno, M. G. Simpson, and R. B. Kelley. 2013. Pectocarya anisocarpa, a new species of Boraginaceae from western North America,
with a revised dichotomous key and photographic atlas for the genus in the region. Aliso 31: 1-13.
Guilliams, C. M., T. Jang, and B. G. Baldwin. 2016. Molecular and morphological evidence for recognition of two species within Harpagonella (Amsinckiinae, Boraginaceae). PhytoKeys 70: 17-30.
Guilliams, M. C., K. Hasenstab-Lehman, M. Mabry, and M. G. Simpson. 2017. Memoirs of a frequent flier: Phylogenomics reveals 18 long-distance dispersals
between North America and South America in the popcorn flowers (Amsinckiinae, Boraginaceae). American Journal of Botany 104: 1717-1728.
Guilliams, C. M., K. Hasenstab-Lehman, and B. G. Baldwin. 2020. Nomenclatural changes in western North American Amsinckiinae (Boraginaceae). Novon 28: 51-59.
Hargrove, L. and M. G. Simpson. 2003. Ultrastructure of heterocolpate pollen in Cryptantha (Boraginaceae). International Journal of Plant Sciences 164: 137-151.
Hasenstab-Lehman, K. E. and M. G. Simpson. 2012. Cat’s eyes and popcorn flowers: Phylogenetic systematics of the genus Cryptantha s.l.
(Boraginaceae). Systematic Botany 37: 738–757.
Hasenstab-Lehman, K. E. 2017. Phylogenetics of the borage family: Delimiting Boraginales and assessing closest relatives. Aliso: A Journal of Systematic
and Evolutionary Botany 31: 41-49.
Luebert, F., L. Cecchi, M. W. Frohlich, M. Gottschling, C. M. Guilliams, K. E. Hasenstab-Lehman, H. H. Hilger, J. S. Miller, M. Mittelbach, M. Nazaire, M. Nepi,
D. Nocentini, D. Ober, R. G. Olmstead, F. Selvi, M. G. Simpson, K. Sutorý, B. Valdés, G. K. Walden, and M. Weigend. 2016. Familial classification of the
Boraginales.
Taxon 65: 502–522 .
Mabry, M. E., R. A. Dowdy, L. M. Simpson, J. P. Rebman, and M. G. Simpson. 2016. Taxonomy of the winged popcorn flower: Cryptantha pterocarya (Boraginaceae). Phytotaxa 253: 97-130.
Mabry, M. E. and M. G. Simpson. 2018. Evaluating the monophyly and biogeography of Cryptantha (Boraginaceae). Systematic Botany 43: 53-76.
Moroni, P., A. Martínez, and M. G. Simpson. 2021. Nomenclatural revision of Cryptantha (Boraginaceae s. str.) names linked to South American taxa. PhytoKeys 181:29-47.
https://doi.org/10.3897/phytokeys.181.69740
Rebman, J. P. and M. G. Simpson. 2022. Three new species of Cryptantha (Boraginaceae) from the Southern Channel Islands of California. Madroño 69.
Ripma, L. A., M. G. Simpson, and K. Hasenstab-Lehman. 2014. Geneious! Simplified genome skimming methods for phylogenetic systematic studies:
A case study in Oreocarya (Boraginaceae). Applications in Plant Sciences 2: 1400062.
Simpson, M. G. and K. E. Hasenstab. 2009. Cryptantha of Southern California. Crossosoma 35: 1-59.
Simpson, M. G. and J. P. Rebman. 2013. A new species of Cryptantha (Boraginaceae) from the Sierra de San Pedro Mártir, Baja California, Mexico. Madroño 60:35-45.
Simpson, M. G., J. P. Rebman, K. E. Hasenstab-Lehman, C. M. Guilliams, and P. O. McConnell. 2013. Cryptantha wigginsii (Boraginaceae): A presumed extinct species rediscovered.
Madroño 60: 24-34.
Simpson, M. G., R. Dowdy, J. P. Rebman, R. B. Kelley, and L. M. Simpson. 2014. Recognition of two species in Eremocarya (Boraginaceae):
Evidence from fornix bodies, nutlets, corolla size, and biogeography. Madroño 61: 259–275.
Simpson, M. G., K. Hasenstab-Lehman, and R. B. Kelley. 2014. Typification of the name Johnstonella (Boraginaceae). Taxon 63: 930-931.
Simpson, M. G., L. M. Simpson, and J. P. Rebman. 2016. A new, large-flowered variety of Eremocarya micrantha (Boraginaceae). Madroño 63: 39-54.
Simpson, M. G. and R. B. Kelley. 2017. Cryptantha nevadensis var. rigida elevated to species with a new name, C. juniperensis. Phytotaxa 295: 227-236.
Simpson, M. G., C. M. Guilliams, K. E. Hasenstab-Lehman, M. E. Mabry, and L. Ripma. 2017. Phylogeny of the popcorn flowers: Use of genome skimming to
evaluate monophyly and interrelationships in subtribe Amsinckiinae (Boraginaceae). Taxon 66 :1406–1420.
Simpson, M. G., M. E. Mabry, and K. Hasenstab-Lehman. 2019. Transfer of four species of Cryptantha to the genus Johnstonella (Boraginaceae). Phytotaxa 425: 279–289.
Simpson, M. G., J. Stephens, and S. Yang. 2020. Noteworthy Collections: Johnstonella angelica (I.M.Johnston) Hasenstab & M.G.Simpson. Madroño 67: 5–8.
Simpson, M. G. and J. P. Rebman. 2021. Research in Boraginaceae: A new variety of Cryptantha maritima, Cryptantha pondii resurrected, and Johnstonella echinosepala transferred back to Cryptantha.
Phytotaxa 509:185–210.
Simpson, M.G. & Rebman, J.P. 2021. A new species of Cryptantha restricted to dunes in northwestern Baja California, Mexico. Madroño 68: 126-136.
Simpson, M. G., K. E. Hasenstab-Lehman, M. E. Mabry, and R. B. Kelley. 2022. Jepson eFlora: Cryptantha. Jepson Flora Project (eds.) 2022. https://ucjeps.berkeley.edu/eflora
