{"id":81217,"date":"2014-07-15T19:36:05","date_gmt":"2014-07-15T18:36:05","guid":{"rendered":"https:\/\/botany.cz\/cs\/?p=81217"},"modified":"2024-03-26T21:46:15","modified_gmt":"2024-03-26T20:46:15","slug":"cycas-zeylanica","status":"publish","type":"post","link":"https:\/\/botany.cz\/cs\/cycas-zeylanica\/","title":{"rendered":"CYCAS ZEYLANICA (J. Schust.) A. Lindstr. et K. D. Hill &#8211; cykas"},"content":{"rendered":"<p><strong>Syn.:<\/strong> <em>Cycas rumphii<\/em> subsp. <em>zeylanica<\/em> J. Schust.<br \/>\n<strong>\u010cele\u010f:<\/strong> <em>Cycadaceae<\/em> Pers. &#8211; cykasovit\u00e9<!--more--><\/p>\n<p><img src=\"\/foto3\/cycaszeylherb1.jpg\" alt=\"Cycas zeylanica\" title=\"Cycas zeylanica\"\/><\/p>\n<p><strong>Roz\u0161\u00ed\u0159en\u00ed:<\/strong> Druh je endemitem Sr\u00ed Lanky a Andamansk\u00fdch a Nikobarsk\u00fdch ostrov\u016f, kter\u00e9 pat\u0159\u00ed k Indii. Posledn\u00ed zbytky \u017eivotaschopn\u00e9 populace tohoto druhu v jihoz\u00e1padn\u00edch pob\u0159e\u017en\u00edch oblastech Sr\u00ed Lanky byly zni\u010deny tsunami v prosinci 2004, pozd\u011bji tam bylo nalezeno pouze n\u011bkolik rozpt\u00fdlen\u00fdch star\u00fdch exempl\u00e1\u0159\u016f. Na Andamansk\u00fdch a Nikobarsk\u00fdch ostrovech je druh st\u00e1le je\u0161t\u011b relativn\u011b hojn\u00fd, i kdy\u017e i tam je po\u0161kozov\u00e1n cyklony a rozvojem turismu. <\/p>\n<p><strong>Ekologie:<\/strong> <em>Cycas zeylanica<\/em> roste p\u0159edev\u0161\u00edm v pob\u0159e\u017en\u00edch les\u00edch v nadmo\u0159sk\u00fdch v\u00fd\u0161k\u00e1ch 5\u201350 m, na p\u00eds\u010dit\u00fdch p\u016fd\u00e1ch, \u010dasto na stabilizovan\u00fdch dun\u00e1ch. <\/p>\n<p><strong>Popis:<\/strong> Dvoudom\u00e1 rostlina palmovit\u00e9ho habitu, dor\u016fst\u00e1 v\u00fd\u0161ky 2\u20133 m, kmen je \u0161irok\u00fd 13\u201320 cm, v\u011btven\u00fd. Listy nahlou\u010den\u00e9 u vrcholu vyr\u016fstaj\u00ed spir\u00e1lovit\u011b, jsou zpe\u0159en\u00e9, 140\u2013200 cm dlouh\u00e9, slo\u017een\u00e9 ze 35\u201350 p\u00e1r\u016f kopinat\u00fdch l\u00edstk\u016f s vyzna\u010denou st\u0159edovou \u017eilkou, 18\u201330 cm dlouh\u00fdch, 1,2\u20131,5 cm \u0161irok\u00fdch, na vrcholu \u0161pi\u010dat\u00fdch, na povrchu leskl\u00fdch, s celistv\u00fdm slab\u011b podvinut\u00fdm okrajem. \u0158ap\u00edk je 50\u201370 cm dlouh\u00fd, ostnit\u00fd ve 30\u2013100 % d\u00e9lky. V ml\u00e1d\u00ed jsou listy pokryty b\u00edlou a\u017e oran\u017eovou plst\u00ed. Pyl produkuj\u00edc\u00ed \u0161i\u0161tice jsou termin\u00e1ln\u00ed, v\u0159etenovit\u00e9, 30-40 cm dlouh\u00e9 a 10 cm \u0161irok\u00e9, mikrosporofyly 3,5\u20134,5 cm dlouh\u00e9 a 1,7\u20131,9 cm \u0161irok\u00e9. Sami\u010d\u00ed rostliny maj\u00ed v horn\u00ed \u010d\u00e1sti kmene velk\u00e9 mno\u017estv\u00ed megasporofyl\u016f 17\u201330 cm dlouh\u00fdch, v doln\u00ed \u010d\u00e1sti s 2\u20135 vaj\u00ed\u010dky. Semena jsou zplo\u0161t\u011bl\u00e1 a\u017e vej\u010dit\u00e1, 6\u20137 cm dlouh\u00e1, s houbovit\u00fdm endokarpem a oran\u017eov\u011b hn\u011bd\u00fdm osemen\u00edm, vl\u00e1knit\u00e1 vrstva chyb\u00ed. <\/p>\n<p><strong>Ohro\u017een\u00ed a ochrana:<\/strong> V \u010cerven\u00e9m seznamu IUCN je druh <em>Cycas zeylanica<\/em> klasifikov\u00e1n jako zraniteln\u00fd (VU), je chr\u00e1n\u011bn i mezin\u00e1rodn\u00ed obchodn\u00ed \u00famluvou <a href=\"\/cs\/cites\/\">CITES<\/a>.<\/p>\n<p><strong>Pozn\u00e1mka:<\/strong> Druhov\u00e9 jm\u00e9no <em>zeylanica<\/em> je odvozeno od d\u0159\u00edv\u011bj\u0161\u00edho jm\u00e9na pro Sr\u00ed Lanku (Cejlon).<\/p>\n<p><img src=\"\/foto3\/cycaszeyl1.jpg\" alt=\"Cycas zeylanica\"\/><img src=\"\/foto3\/cycaszeyl2.jpg\" alt=\"Cycas zeylanica\"\/><br \/>\n<img src=\"\/foto3\/cycaszeylherb2.jpg\" alt=\"Cycas zeylanica\"\/><br \/>\n<img src=\"\/foto3\/cycaszeylherb3.jpg\" alt=\"Cycas zeylanica\"\/><br \/>\n<img src=\"\/foto3\/cycaszeylherb4.jpg\" alt=\"Cycas zeylanica\"\/><\/p>\n<p>Fotografov\u00e1no dne 15. 2. 2014 (Sr\u00ed Lanka, <a href=\"\/cs\/peradenyia\/\">botanick\u00e1 zahrada Peradeniya<\/a>).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Syn.: Cycas rumphii subsp. zeylanica J. Schust. \u010cele\u010f: Cycadaceae Pers. &#8211; cykasovit\u00e9<\/p>\n","protected":false},"author":29,"featured_media":180359,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8,38,15,225,14],"tags":[],"fifu_image_url":"\/foto3\/cycaszeylherb1.jpg","_links":{"self":[{"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/posts\/81217"}],"collection":[{"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/users\/29"}],"replies":[{"embeddable":true,"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/comments?post=81217"}],"version-history":[{"count":1,"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/posts\/81217\/revisions"}],"predecessor-version":[{"id":239812,"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/posts\/81217\/revisions\/239812"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/media\/180359"}],"wp:attachment":[{"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/media?parent=81217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/categories?post=81217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/botany.cz\/cs\/wp-json\/wp\/v2\/tags?post=81217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}