Bornean Species of Cyrtandra (Gesneriaceae) Closely Allied to C. chrysea and C. eximia

Cyrtandra chrysea C. B. Clarke and C. exima C. B. Clarke, together with seven new species, constitute a group distinguished by a suite of characters including the deeply divided calyx, the small white corolla variously patterned with pale to deep purple, the unilateral disc, the ovary constricted at base and the small fruit. All nine species are fully described and an identification key provided. Six species (C. decipiens, C. lanata, C. dasymallos, C. nibongensis, C. villifructus, C. kostermansii) are described as new; the material of a further species is insufficient to typify a name.