Rubiaceae Arachnothryx peruviana (Standl.) Steyerm. - Peru C. Vargas 2521 image_info.php?img=images/collections/cvargas_002521_01_p.jpg&id=96848#image96848 - Peru H. van der Werff 16793 image_info.php?img=images/collections/hvanderwerff_016793_01_p.jpg&id=127550#image127550 Rubiaceae Arachnothryx lojensis Steyerm. - Peru J. Campos 3886 image_info.php?img=images/collections/jcampos_003886_01_p.jpg&id=124837#image124837 Rubiaceae Arachnothryx buddleioides (Benth.) Planch. - Costa Rica L. Fournier 1595 image_info.php?img=images/collections/lfournier_001595_01_p.jpg&id=129000#image129000