The Genus Lembosia on Humboldtia Species in Kerala, India

The genus Humboldtia comprises six species and of which five are endemic to Peninsular India. Of these, Humboldtia unijuga and H. vahliana were infected with three species of the genus Lembosia, namely, Lembosia humboldtiae, L. humboldtiicola and L. humboldtiigena. The former species was described from Kerala State and the latter two are described here as new to science. All these species are described and illustrated in detail to provide the consolidated account of the species known on this host genus.