Tehuacan Valley botanical expedition

Glimpses of the Botanical Diversity of the Valle de Tehuacán, Mexico

Benjamin T. WilderUniversity of California, Riverside

Cephalocereus columna-trajani

viejito

QuickTim e™ and a decompress or

are needed to see th is p icture.

Photo by Rebecca Wilder

Photosynthesis and Pseudocephalium

Zavala-Hurtado, Vite & Ezcurra 1998

Neobuxbaumia tetetzo

tetecho

Neobuxbaumia macrocephala

órgano de cabeza roja

Ferocactus robustus

Pachycereus hollianus baboso

Echinocactus platyacanthus

Biznaga, biznaga burra

Beaucarnea gracilis

NolineaceaePata de elefante, barrigón

Mammillaria

Coryphantha retusa

AreoleA reduced apical meristem derived from leaves, a short shoot

Hechtia sphaeroblasta

Agave sp. Dasylirion sp.

Cnidosculus tubulosusEuphorbiaceae

Mala mujer

Castela erecta Chapa amarga

Simaroubaceae

Male Female

Ayenia fruticosa

Cercidium praecox

Selaginella lepidophylla

siempreviva

Dry Season

Wet Season

La Cañada - Oaxaca

Pachycereus weberi

Cardón, candelabra, chico

Bursera

21 in the Valle de Tehuacán-Cuicatlán,

4 endemics

Cut trunk of a Copal Bursera- see resin on edge of the wood

Copal for sell at a market in Guatemala

Cloud of incense during a procession during Semana Santa in Antigua, Guatemala

Thanks

Many Photos by Kathryn Larson

Phd student at University of Chicago

Questions