New species of bee-pollinated Castilleja from Peru, with a taxonomic revision of South American members of subg. Colacus

A systematic revision of the South American members of Castilleja subg. Colacus based on evidence from floral morphology, SEM of seeds, chromosome numbers, and geographic distribution is presented, recognizing seven species. Four annual species, Castilleja alpicola, C. peruviana, C. profunda, and C....

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Veröffentlicht in:Systematic botany 1992-07, Vol.17 (3), p.417-431
Hauptverfasser: Chuang, T.I. (Illinois State University, Normal, IL), Heckard, L.R
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creator Chuang, T.I. (Illinois State University, Normal, IL)
Heckard, L.R
description A systematic revision of the South American members of Castilleja subg. Colacus based on evidence from floral morphology, SEM of seeds, chromosome numbers, and geographic distribution is presented, recognizing seven species. Four annual species, Castilleja alpicola, C. peruviana, C. profunda, and C. vadosa, all in the annual sect. Oncorhynchus, are described as new with a discussion on their systematic relationships. A key to species is provided and each species is illustrated with line drawings; distribution maps and citations of all known collections indicate sites of known populations. The five known chromosome counts, four of n = 36 (hexaploid) and one of n = 48 (octoploid), suggest that polyploidy has played a major role in the evolution of South American Castilleja subg. Colacus. The introduction of self-compatible C. attenuata into central Chile is postulated to have taken place relatively recently from the western United States
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(Illinois State University, Normal, IL)</au><au>Heckard, L.R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New species of bee-pollinated Castilleja from Peru, with a taxonomic revision of South American members of subg. Colacus</atitle><jtitle>Systematic botany</jtitle><date>1992-07-01</date><risdate>1992</risdate><volume>17</volume><issue>3</issue><spage>417</spage><epage>431</epage><pages>417-431</pages><issn>0363-6445</issn><eissn>1548-2324</eissn><coden>SYBODA</coden><abstract>A systematic revision of the South American members of Castilleja subg. Colacus based on evidence from floral morphology, SEM of seeds, chromosome numbers, and geographic distribution is presented, recognizing seven species. Four annual species, Castilleja alpicola, C. peruviana, C. profunda, and C. vadosa, all in the annual sect. Oncorhynchus, are described as new with a discussion on their systematic relationships. A key to species is provided and each species is illustrated with line drawings; distribution maps and citations of all known collections indicate sites of known populations. The five known chromosome counts, four of n = 36 (hexaploid) and one of n = 48 (octoploid), suggest that polyploidy has played a major role in the evolution of South American Castilleja subg. Colacus. The introduction of self-compatible C. attenuata into central Chile is postulated to have taken place relatively recently from the western United States</abstract><cop>Kent, OH</cop><pub>American Society of Plant Taxonomists</pub><doi>10.2307/2419482</doi><tpages>15</tpages></addata></record>
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subjects ANATOMIA DE LA PLANTA
ANATOMIE VEGETALE
Beak
Biological and medical sciences
Bracts
Calyx
CHILE
CHILI
Corolla
DISTRIBUCION NATURAL
DISTRIBUTION NATURELLE
ESPECE NOUVELLE
ESPECIES NUEVAS
EVOLUCION
EVOLUTION
Fundamental and applied biological sciences. Psychology
Glycocalyx
Hair
Lips
NOMBRE CHROMOSOMIQUE
NUMERO DE CROMOSOMAS
Perennials
PEROU
PERU
Plant cytology, morphology, systematics, chorology and evolution
Plants
SCROPHULARIACEAE
Spermatophyta
Systematics (diagnosis, chromosome numbers)
TAXONOMIA
TAXONOMIE
Testa
title New species of bee-pollinated Castilleja from Peru, with a taxonomic revision of South American members of subg. Colacus
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