TY - JOUR T1 - Internal secretory structures in Hypericum (Clusiaceae): H. perforatum L. and H. balearicum L. JF - New Phytol. Y1 - 1990 A1 - Curtis, JD A1 - Lersten, NR SP - 571 EP - 580 (1990) KW - Systematics: ANGIOSPERMAE GUTTIFERAE: HYPERICUM VL - 114 N1 - EnAnatomy and morphology. Geog=0KBD, Royal Botanic Gardens, Kew. ER -