BSA Online Image Collection, Organography

Welcome to the Botanical Society of America's online image collection. We hope you enjoy a browse through our members' contributions. Please note: each image acts as a link to a page containing more information, and a larger version of the picture. RETURN TO THE IMAGE MAP


Ruscus shoot apex, orthotropic axis	Ruscus aculeatus, phylloclads	Myriophyllum shoot apex	Myriophyllum stem, x.s.	Typha stem, diaphrams


Acacia, phyllodes	Homalocladium, platyclades	Ring bark	Conifer bark	Myrsine, proleptic branching


Vanda, monopodial axis	Sea grape, distichous branching	Cactus, alternate branching	Calla, shoot apex	Peltate leaves


Nymphaea, peltate leaves	Tillandsia usneoides on live oak	Tillandsia usneoides	Zea leaf, autofluorescence	Trachycarpus excelsus, palm leaf development


Petunia, guard cell	Nepenthes, trichome	Salvinia, trichomes	Avicennia, salt trichomes	Haworthia, window leaves


Senecio, window leaves	Agave, sp., leaf succulent	Kalanchoe tubulifolia, plantlets	Phyllitis scolopendrium, root, l.s.	Avicennia, pneumatophores


Mangrove, stilt roots	Rhizophora, seedlings	Prop roots	Aerial roots under tension	Anthurium, coralloid roots


Ficus racemosa, buttress roots	Cuscuta, parasite	Cuscuta, haustoria in Beta (beet) petiole	Arceuthobium douglasii	Arceuthobium douglasii


Stem succulents, cactus-left, euphorb-right	Zygocactus, flattened stem	Euphorbia dawei, flattened stem	Euphorbia dawei	Cereus, convoluted stem


Euphorbia grandicornis, stem	Opuntia fulgida	Euphorbia ingens	Stapelia, stem succulents	Baobob


Pereskia w/stipular thorns	Pereskia w/spines & thorns	Cereus thurberi, spines	Cereus thurberi, spines	Carissa grandiflora, branches, spines


Bougainvillea, thorns	Hura crepitans, stem w/spines	Dioon spinulosum, leaf spines	Idria columnaris, leaf spines	Passiflora, tendril


Echinocystis, tendril	Decumaria barbara, adventitious roots	Podostemon ceratophyllum	Pandanus root (w/root caps)	Victoria regia leaf


Acacia cornigera