Table 1 in Taxonomic revision of the southern African species of the genus Cynoglossum L. (Boraginaceae)

Table 1. Distinguishing characters between the southern African Cynoglossum species.
CharactersC. alticolaC. amabileC. austroafricanumC. coeruleum subsp. johnstonii var. manniiC. hispidumC. lanceolatumC. obtusicalyxC. spelaeumFloral colourDeep blueBluish purplePale blueWhite with pale blue throatMagentaWhite with pale blue throatPale blueWhiteNutlet shape and sizeConvex, 6-9 × 5-6 mmOvoid to convex, 2-4 × 3-4 mmOvoid, 3.0-3.5 × 2.5-3.0 mmOvoid, 3-4 × 2.5-3.5 mmConvex, 5-6 × 3-5 mmOvoid-convex, 3-4 × 2.5-3.5 mmOvoid-convex, 2-4 × 3-4 mmOvoid, ca. 4 × 5 mmNutlet ornamentationGlochidia densely packed on nutletMarginal glochidia are more distinct than the central glochidiaGlochidia more spread towards the marginsGlochidia more marginal and on the median lineGlochidia covering the whole nutletGlochidia sparsely arranged on nutletdensely echinulate with glochidiaglochidia more marginal and acentric, marginal glochidia are longer compared to the acentric glochidia