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Euphorbiaceae) ¡¡¡ Revisión de Euphorbia subgénero Pedilanthus (Euphorbiaceae) Por JOSÉ AQUILEO LOMELÍ SENCIÓN Tesis presentada como requisito parcial para obtener el grado de DOCTOR EN CIENCIAS BIOLÓGICAS (Orientación en Sistemática Vegetal) UNIVERSIDAD DE GUADALAJARA CENTRO UNIVERSITARIO DE CIENCIAS BIOLÓGICAS Y AGROPECUARIAS 2006 Direct r del Co ité Dr. Se ando C rvajal Hernández Fech11 I UNIVERSIDAD DE GUADALAJARA CENTRO UNIVERSITARIO DE CIENCIAS BIOLÓGICAS Y AGROPECUARIAS DIVISIÓN DE CIENCIAS BIOLÓGICAS Y AMBIENTALES COORDINACIÓN DEL POSGRADO EN CIENCIAS BIOLOGICAS DR. DANIEL A. F. VILLAGOMEZ ZA V ALA COORDINADOR DEL POSGRADO DEL CENTRO UNIVERSITARIO CIENCIAS BIOLÓGICAS Y AGROPECUARIAS PRESENTE. Por este medio comunico a usted que con fecha 13 de diciembre del 2005, se reunió la Junta Académica del Programa de Doctorado en Ciencias Biológicas, para recibir la tesis de grado del alumno José Aquileo Lomelí Sención . Después de revisar el trabajo escrito y teniendo a la vista la constancia de calificaciones obtenidas por el alumno en los cursos correspondientes al mencionado programa de posgrado, la Junta Académica acordó lo siguiente: 1.- Aceptar el trabajo de tesis titulado: "Revisión de Euphorbia subgénero Pedilanthus (Euphorbiaceae )". 2.- Avalar que el alumno ha concluido el plan de estudios del programa de posgrado y cumplido con los requerimientos administrativos necesarios para fijar día y hora del examen de grado. 3.- Designar como miembros del jurado de examen a las siguientes personas: Dr. Servando Carvajal Hernández (Director de tesis) Dr. José Antonio Vázquez Garcia Dr. Jorge Alberto Pérez de la Rosa Dr. Aarón Rodríguez Contreras Dra. Laura Guzmán Dávalos 4.- Fijar como fecha de examen el día 4 de enero del 2006 a las !0:00 horas. Agradezco a usted la atención que se sirva prestar al presente y aprovecho la oportunidad para enviarle un cordial saludo. Atentamente "Piensa y Trabaja" Las Agujas, Nextipac, Zapopan, Jal., 13 de diciembre del 2005. ~~~--~Jt Dra. Laura Guzmán á os Coordinadora del Posgrado en Ciencias Biológicas Las Agujas, Nextipac, Zapopan. Jalisco• CP 45110 • APl-139 Zapopan, Jalisco, México. Tel: (91-3) 6820003 Fax. (91-3) 6820003 iv Revisión de Euphorbia subgénero Pedilanthus (Euphorbiaceae) Por JOSÉ AQUILEO LOMELÍ SENCIÓN Tesis presentada como requisito parcial para obtener el grado de DOCTOR EN CIENCIAS BIOLÓGICAS (Orientación en Sistemática Vegetal) UNIVERSIDAD DE GUADALAJARA CENTRO UNIVERSITARIO DE CIENCIAS BIOLÓGICAS Y AGROPECUARIAS 2006 Aprobado por: • J);c. lf>,1005 Fecha J)i<e. \Q} ~ Fecha 3ic. 31, J.00.5- Fecha ila. >1 J()/}.F Fecha 7 })1c 3/, ;;¿oo.:;­ Coordinadora stgrado en Ciencias Biológicas Fecha V CONTENIDO Lista de fig u ras --------------------------------------------------------------------------------vi ii Lista de cuadros ------------------------------------------------------------------------------- ix Lista de los taxones estudiados -------------------------------------------------------------x Res u me n ----------------------------------------------------------------------------------------- xi Abstract -----------------------------------------------------------------------------------------xiii CAPÍTULO 1. Revisión de Euphorbía subgénero Pedílanthus (Euphorbiaceae) -------------------------------------------------------------------------------------------------------1 1n trod u cci ó n --------------------------------------------------------------------------------------1 J u stifi ca ció n --------------------------------------------------------------------------------------3 Materiales y métodos --------------------------------------------------------------------------5 Resultados ----------------------------------------------------------------------------------------8 Euphorbía L. subgénero Pedílanthus (Poit.) J. A. Lomelí et Carvajal, subgenus novus ----------------------------------------------------------------------------------------------8 Clave para identificar las especies de Euphorbía subgénero Pedílanthus-----11 Clave para identificar las subespecies de Euphorbía títhymaloídes ------------ 74 Clave para identificar las especies de Euphorbía subg. Pedílanthus de Guerrero -----------------------------------------------------------------------------------------------------96 Clave para identificar las especies de Euphorbía subg. Pedílanthus de Jalisco -----------------------------------------------------------------------------------------------------97 Clave para identificar las especies de Euphorbía subg. Pedílanthus de Mesoamérica -----------------------------------------------------------------------------------98 Clave para identificar las especies de Euphorbía subg. Pedílanthus de Michoacán --------------------------------------------------------------------------------------98 Clave para identificar las especies de Euphorbia subg. Pedilanthus del noroeste de México. Con base en la persistencia de las hojas y el color del látex ------99 Clave para identificar las especies de Euphorbía subg. Pedilanthus del noroeste de México. Con base en el hábito y el tamaño de las hojas -------------------- 100 Clave para identificar las especies de Euphorbía subg. Pedilanthus de Oaxaca --------------------------------------------------------------------------------------------------- 100 vi Clave para identificar las especies de Euphorbia subg. Pedilanthus de Veracruz --------------------------------------------------------------------------------------------------- 101 Clave para identificar las especies de Euphorbia subg. Pedilanthus de Yucatán --------------------------------------------------------------------------------------------------- 102 Distribución geográfica de las especies de Euphorbia subg. Pedilanthus---102 Evaluación del estado de conservación de los taxones de Euphorbia subg. Pedilanthus------------------------------------------------------------------------------------ 104 Discusión ------------------------------------------------------------------------------------- 105 Conclusiones -------------------------------------------------------------------------------- 108 Especies excluidas-------------------------------------------------------------------------- 109 Agradecimientos ---------------------------------------------------------------------------- 11 O Literatura citada ------------------------------------------------------------------------~---- 11 O Apéndice 1. Figuras ------------------------------------------------------------------------ 115 Apéndice 2. Cuadros ---------------------------------------------------------------------- 136 CAPÍTULO 2. Análisis taxonómico y nomenclatural de Pedilanthus millspaughii Pax et Hoffm. y de P. oerstedii Klotzsch et Garcke (Euphorbiaceae) --------150 Resumen -------------------------------------------------------------------------------------- 150 1n trod u cció n ---------------------------------------------------------------------------------- 1 5 O Materiales y métodos ----------------------------------------------------------------------151 Resultados ----------------------------------------------------------------------------------- 152 Discusión ------------------------------------------------------------------------------------- 154 Conclusiones -------------------------------------------------------------------------------- 156 Agradecimientos ---------------------------------------------------------------------------- 156 Literatura citada ----------------------------------------------------------------------------· 157 Apéndice. Cuadros ------------------------------------------------------------------------- 158 CAPÍTULO 3. Lomelí-Sención, J. A. and E. Sahagún-Godínez. 2002. Rediscovery of Pedilanthus coalcomanensis (Euphorbiaceae), a threatened endemic Mexican species. Amer. Jour. Bot. 89(9): 1485-1490. CAPÍTULO 4. Olson M. E., J. A. Lomelí S. y N. l. Cacho. 2005. Extinction threat in the Pedilanthus clade (Euphorbia, Euphorbiaceae), with special reference to the recently rediscovered E. conzattii (P. pulchellus). Amer. Jour. Bot. 92 (4): 634-641. viii Lista de figuras (Apéndice 1) Fig. 1. E. bracteata ------------------------------------------------------------------------- 116 Fig. 2. Distribución geográfica conocida de E. bracteata ------------------------117 Fig. 3. E. ca/carata ------------------------------------------------------------------------- 118 Fig. 4. Distribución geográfica conocida de E. calcarata ------------------------ 119 Fig. 5. E. coalcomanensis ---------------------------------------------------------------- 120 Fig. 6. Distribución geográfica conocida de E. coa/comanensís, E. fínkii y E. lomelíí------------------------------------------------------------------------------------ 121 Fig. 7. Distribución geográfica conocida de E. colligata y E. díazlunana en Jalisco, México ----------------------------------------------------------------------- 122 Fig. 8. Distribución geográfica conocida de E. conzattií, E. dress/erí y E. tehuacana ----------------------------------------------------------------------------- 123 Fig. 9. E. cymbifera ------------------------------------------------------------------------124 Fig. 1 O. Distribución geográfica conocida de E. cymbífera ---------------------- 125 Fig. 11 . E. cyri ------------------------------------------------------------------------------- 126 Fig. 12. E. díazlunana --------------------------------------------------------------------- 127 Fig. 13. E. fínkíí ------------------------------------------------------------------------------
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