FIGURE 7. A–C. Cryptantha pterocarya var. stenoloba, showing elongate calyx and nutlets. A, C. Maguire & Blood 4466 (Holotype), images from scanned herbarium sheet. B. Fruits of additional specimen of C. p. var. stenoloba (RSA 782075). D. Cryptantha p. var. pterocarya (NY 00335248, Holotype) for comparison. Note shorter nutlets and considerably shorter calyx. E,F. Cryptantha p. var. stenoloba (GH barcode 00096072, Holotype). E. Four nutlets of a single fruit, showing heteromorphism, with three consimilar nutlets winged only on sides and one odd, unwinged nutlet. F. One of consimilar nutlets, dorsal view (left) and single odd nutlet in dorsal (middle) and ventral (right) views. G–I. Comparison of nutlet form with other varieties, all to the same scale as "F." G. Cryptantha p. var. pterocarya (NY 00335248, Holotype). H. Cryptantha pterocarya var. cycloptera [C. cycloptera] (CAS 202, barcode 0006884, Holotype). I. Cryptantha p. var. purpusii, (JEPS 2548, Holotype). Scale bars = 1 mm.

Published as part of Mabry, Makenzie E., Dowdy, Regina A., Simpson, Lee M., Rebman, Jon P. & Simpson, Michael G., 2016, Taxonomy of the winged popcorn flower: Cryptantha pterocarya (Boraginaceae), pp. 97-130 in Phytotaxa 253 (2) on page 106, DOI: 10.11646/phytotaxa.253.2.1, http://zenodo.org/record/13675771