REVISION OF LOBELIA SECT. SPEIREMA (CAMPANULACEAE: LOBELIOIDEAE)

摘要

Lobelia sect. Speirema, endemic to southeastern Asia, is a group of large lax perennial herbs with solitary axillary flowers, sub-bilabiate corolla, baceate fruit, and reticulate seeds. Study of morphological characters in a set of representative and type specimens supported recognition of L. fangiana, L. longipedicellata, and L. montana, but not L. brevisepala, L. reflexisepala, or L. wardii; these last three are treated here as synonyms of L. montana. In addition, L. deleiensis is resurrected from the synonymy of L. montana, as it may be distinguished by a suite of floral characters that is assumed to confer reproductive isolation.