Three new species of Diascia (Scrophulariaceae) from the western Cape | Zendy

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Three new species of <i>Diascia</i> (Scrophulariaceae) from the western Cape

Author(s) -

Kim E. Steiner

Publication year - 1992

Publication title -

bothalia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.457

H-Index - 20

eISSN - 2311-9284

pISSN - 0006-8241

DOI - 10.4102/abc.v22i1.815

Subject(s) - scrophulariaceae , trichome , botany , biology , cape , nectar , pollen , geography , archaeology

Three annual Diascia species are described from the western Cape. Two species, D maculata K.E. Steiner and D. humilis K.E. Steiner have small flowers and are closely related. D. maculata is characterized by a slightly gibbous corolla with no spurs or sacs, erect stamens, and a distinct patch of oil-secreting trichomes in the tube at the base of each upper and lateral corolla lobe. D. humilis is characterized by a bisaccate corolla, forward projecting stamens and oil-secreting trichomes localized in corolla sacs. The third new species, D hexensis K.E. Steiner, is most similar to D. sacculata Benth.. but it differs from that species by its larger flowers and much longer spurs which curve downward instead of upward.