Tracing of Disa excelsa sheet Gamma of Thunberg's Herbarium! This from description is evidently the plant which Thunberg has described as D.excelsa and must therefore be regarded as the Type of that species, his description of the leaves was probably taken from some other plants named D.excelsa in his Herbarium, but his description of the stem, inflorescence and flower was doubtless compiled from these here represented, as none other in his Herbarium excepting this will at all agree agree with his description; moreover the single flower marked A represents one that has been dissected and used by Thunberg himself when describing; the lip of this flower is warting but I have indicated it by dotted lines, this flower belongs to the specimen I have marked B, those of C being slightly different in the form of the petals, though apparently not otherwise distinct, ot at most a trifling form. June 26th 1883. N.E.Brown.