William Curtis, The Botanical Magazine, Volume V…
“ Specific Character and Synonyms. HYPERICUM calycinum floribus pentagynis solitariis termi- nalibus, caule tetragono fruticoso, foliis ob- longo-ovatis coriaceis. Linn. Syst. Vegetab. p. 700. Mant. 106. Hort. Kew. v. 3. 103. ”
