Cactus Explorers Journal - The Cactus Explorers Club

More documents

Recommendations

Info

The Cactus Explorer ISSN 2048-0482 Number 4 May 2012 MatuCana MyrIaCantha and M. CoMaCEphala arE dIffErEnt spECIEs The two Matucana names in the title have recently been treated as synonyms but this has not always been the case. Holger Wittner explains why, although they look superficially similar, he believes the two are separate taxa. All photos by the author Fig.1 Matucana myriacantha HFW 02.01 with one flower and one bud at Cerro Los Negros, high above Rio Crisnejas, 2814m Summary: Matucana myriacantha, Matucana comacephala and Matucana crinifera are compared. According to this comparison, Matucana myriacantha is recognized as a distinct species. Matucana crinifera is presented in a new combination and as a subspecies of Matucana haynei (Matucana haynei ssp. crinifera). Matucana comacephala can temporarily be seen as synonymous with Matucana haynei. Zusammenfassung: Matucana myriacantha, Matucana comacephala und Matucana crinifera werden verglichen. Danach ist Matucana myriacantha als eigenständige Art anzuerkennen. Matucana crinifera wird in einer neuen Kombination als Unterart zu Matucana haynei gestellt (Matucana haynei ssp. crinifera). Matucana comacephala ist 50 vorübergehend als Synonym zu Matucana haynei anzusehen. Resumen: Matucana myriacantha, Matucana comacephala y Matucana crinifera son comparados. A continuación, Matucana myriacantha es reconocida como una especie distinta. Matucana crinifera es una nueva combinación como una subespecie de Matucana haynei (Matucana haynei ssp. crinifera). Matucana comacephala temporalmente considerada como un sinónimo de Matucana haynei. This article is intended to finally show the fallacy in the statement that Matucana myriacantha is the northernmost form of Matucana comacephala, which itself is now
Number 4 May 2012 ISSN 2048-0482 The Cactus Explorer Fig.2 An old flowering plant of Matucana myriacantha KK 1041 Fig.5 Old columnar flowering plant of Matucana myriacantha Lau 173 regarded as a subspecies of Matucana haynei (Anderson 2001, Hunt 2006). The origin of this belief will probably have been the contribution of Donald (1974), in which he presents a variety of pink-flowering Matucana and concludes that they are all related. Whether such theories serve as a basis for future studies and are confirmed or not, they can be helpful. Often these statements are frequently repeated Fig.3 Flower of Matucana myriacantha KK 1041 Fig.6 The biggest plant of Matucana myriacantha HFW 02.01 at Cerro Los Negros, high above Rio Crisnejas, 2814m 51 Fig.4 Cross section of the flower of Matucana myriacantha KK 1041 Fig.7 Cross section of the flower of Matucana myriacantha HFW 02.01 (look at Fig.10) and come to be regarded as true, without any further investigations to prove their truth. Investigations must reasonably be done in the habitat. Especially in inaccessible areas, there is often a lack of the necessary time to examine the plants themselves, their flowers and seeds in more detail. The necessary equipment for these studies cannot all be carried. So we are often left with only precisely
Page 1 and 2: Cactus Explorer The first free on-l
Page 3 and 4: Number 4 May 2012 ISSN 2048-0482 Th
Page 5 and 6: Photo: G. Charles Number 4 May 2012
Page 11 and 12: Photo: Cyrill Hunkeler Photo: Cyril
Page 17 and 18: Photo: G. Charles Number 4 May 2012
Page 33 and 34: Photo: A. Hofacker Number 4 May 201
Page 49: Number 4 May 2012 ISSN 2048-0482 Th
Page 69 and 70: Photo: J. Pilbeam Number 4 May 2012
Page 71 and 72: 71 Number 4 May 2012 ISSN 2048-0482

Cactus Explorers Journal - The Cactus Explorers Club

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?