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Department ofBotany

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Locations

Iwokrama Mountains, Guyana Rupununi Savanna, Guyana view from Mt. Ayanganna, Guyana Kaieteur Falls Kaieteur Falls from Johnson's View
Demerara and Sugar Plantations from the air Shell Beach, Guyana Burned Avicennia Costal Mangrove Forest Shell Beach, Waini Peninsula, Guyana Mudflats, Shell Beach, Waini Peninsula. Photo by T.H. Hollowell.
Mt. Ayanganna rainforest interior (mid-elevation forest). Photo by John LaPolla and Ted Schultz. Rupununi savanna with termite mounds. Photo by John LaPolla and Ted Schultz. Airstrip at base of Mt. Ayanganna. Photo by John LaPolla and Ted Schultz. Aquatic plants on Rewa River. Photo by John LaPolla and Ted Schultz. Lowland rainforest interior, Mabura Hill. Photo by John LaPolla.
View from Cessna 206 airplane of Kaow Island in the Essequibo River, summer 2003. Photo by D. Clarke. View from Cessna 206 of Mt. Ayanganna, summer 2003. Photo by D. Clarke. View of the summit escarpment of “Little Ayanganna,“ central pinnacle of Wokomung Massif. Photo by D. Clarke. View of Kowatipu from the summit of “Little Ayanganna,“ central pinnacle of Wokomung Massif. Photo by D. Clarke. View towards the southeast from the summit of “Little Ayanganna,” the central pinnacle of Wokomung Massif. Photo by D. Clarke.
View of “Little Ayanganna“ and Eastern Pinnacles of the Mt. Wokomung Massif. Photo by D. Clarke. New Ayanganna Airstrip with Mt. Ayanganna in the background. Photo by D. Clarke. View of Mt. Ayanganna from the slopes of an escarpment of Mt. Wokomung. Photo by D. Clarke.


Collecting in the Field

expedition camp collecting equipment Claudius Perry in the field, pressing a specimen Stephen Stern and Erin Tripp pressing specimens David Clarke negotiating with Yufon Maruwunaru (red shorts) to accompany him to Sipu River, Wachana Yaymochi translating (green shirt)
Keith David in a belt of dense Montrichardia (Araceae) and Acrostichum ferns near the Waini River. Wiltshire Hinds pressing plant specimenson the proch of the Kwebana guest house on the Waini River, November 2001. Plant specimen dryer, near Jenman Herbarium, Guyana Terry Henkel, with Dr. Steve Miller, working up the day's collection of macrofungi in a permanent field camp in the Upper Potaro Basin. Terry Henkel with Christopher Andrew, observing a large coppiced Dicymbe tree in the Upper Potaro Basin.
Camp on Mt. Ayanganna, 2002. Photo by John LaPolla and Ted Schultz. Winkler bags set up for ant sampling on Mt. Ayanganna. Photo by John LaPolla and Ted Schultz. Leonard Williams Ascending First Escarpment of Mt. Wokomung. Photo by David Clarke. Diana Gittens on the summit of “Little Ayanganna,“ central pinnacle of Wokomung Massif. Photo by David Clarke. Leonard Williams ascending first escarpment of Mt. Wokomung. Photo by David Clarke.

Plants

Utricularia humboltii Clusia grandifolia Drosera kaieteurensis Zygosepalum labiosum Helosis guyanensis
Norantea guianensis Drosera kaieteurensis Uncaria guianensis Abarema barbouriana Aechmea brassicoides
Alloplectus cristataus Alternanthera sessilis Centropogon roraimensis Coussapoa asperifolia ssp. magnifolia Dichorisandra sp.
Cyperus odoratus Ficus amazonica Hibiscus bifurcatus Ipomoea tiliacea Tococa aristata
Heliconia psittacorum Podostemaceae Ficus fruits Pentaclethra macroloba Victoria amazonica (Poepp.) Sowerby (Nymphaeaceae), oxbow lake of Rupununi River, Karanambo, N. Rupununi
Helosis cayennensis (Sw.) Spreng. (Balanophoraceae) Souroubea (Marcgraviaceae), Great Falls of the Rewa River Bixa orellana L. (Bixaceae), source of annatto (achiote), Essequibo River near Gunn's Strip Psittacanthus (Loranthaceae), Kasskikaityu River. Laguncularia sp. fruits ('white mangrove', Combretaceae)
Rhizophora racemosa G. Mey. propagules ('riverine red mangrove', Rhizophoraceae) Entada polystachya fruit (L.) DC. (Fabaceae, collection THH 423), held by Karen Redden. Cydista aequinoctialis (L.) Miers (Bignoniaceae) Ficus seedling (Moraceae) growign in burned Avicennia swamp Avicennia germinans (L.) L. (Verbenaceae) flowers
Lorostemon bombaciflorum Ducke (Clusiaceae), Clarke 7160. Photo by D. Clarke. Monstera adansonii Schott (Araceae), collected in the Wassarai Mts., Clarke 8425. Photo by D. Clarke. Psychotria aetantha (Sandwith) Steyerm (Rubiaceae), Clarke 10125. Photo by D. Clarke. Bonnetiaceae, Clarke 10515. Photo by D. Clarke. Bomarea sp. (Liliaceae), Clarke 10573. Photo by D. Clarke.
Geonoma maxima var. ambigua (Spruce) A.J. Hend. (Arecaceae), Clarke 10129. Photo by D. Clarke. Epidendrum carpophorum Barb. Rodr. (Orchidaceae), Clarke 10259. Photo by D. Clarke. Gentianaceae, Clarke 10514. Photo by D. Clarke. Symbolanthus sp. (Gentianaceae), Clarke 10693. Photo by D. Clarke. Miconia superba Ule (Melastomataceae), Clarke 10753. Photo by D. Clarke.
Monnina cacumina N.E. Br. (Polygalaceae), Clarke 10819. Photo by D. Clarke. Trichomanes elegans Rich. (Hymenophyllaceae), Clarke 10901. Photo by D. Clarke. Psychotria idiotricha Müll. Arg. (Rubiaceae), Clarke 10936. Photo by D. Clarke. Sterculia sp. (Sterculiaceae), Clarke 10942. Photo by D. Clarke. Utricularia sp. (Utriculariaceae). Photo by D. Clarke.

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