Tehuacan Valley botanical expedition

Page 1

Glimpses of the Botanical Diversity of the Valle de Tehuacรกn, Mexico Benjamin T. Wilder University of California, Riverside






Cephalocereus columna-trajani viejito


Photo by Rebecca Wilder

Photosynthesis and Pseudocephalium

Qu ickTim e™ and a d ecompress or are ne ede d to se e th is p ictu re.

Zavala-Hurtado, Vite & Ezcurra 1998


Neobuxbaumia tetetzo tetecho


Neobuxbaumia macrocephala 贸rgano de cabeza roja

Ferocactus robustus


Pachycereus hollianus

baboso


Echinocactus platyacanthus Biznaga, biznaga burra


Beaucarnea gracilis Nolineaceae Pata de elefante, barrig贸n



Mammillaria



Areole A reduced apical meristem derived from leaves, a short shoot

Coryphantha retusa


Hechtia sphaeroblasta

Agave sp.

Dasylirion sp.


Cnidosculus tubulosus Euphorbiaceae Mala mujer


Male

Castela erecta Simaroubaceae

Female

Chapa amarga


Ayenia fruticosa


Cercidium praecox


Dry Season

Selaginella lepidophylla siempreviva


Wet Season



La Ca単ada - Oaxaca


Pachycereus weberi Card贸n, candelabra, chico



21 in the Valle de Tehuacรกn-Cuicatlรกn, 4 endemics

Bursera


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


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