Acanthaceae Stenostephanus crenulatus (Britton ex Rusby) Wassh. - Peru C. Vargas 5523 image_info.php?img=images/collections/cvargas_005523_01_p.jpg&id=100688#image100688 Acanthaceae Stenostephanus crenulatus (Britton ex Rusby) Wassh. - Peru V. Chama 4211 image_info.php?img=images/collections/vchama_004211_01_p.jpg&id=100855#image100855