Naslov
Morphological and ecological characterization of the newly found Crocus × velebiticus Randić et Kremer (C. malyi × C. vernus)

Autori
Randić, Marko ; Kremer, Dario

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts / Rešetnik, Ivana ; Ljubešić, Zrinka - Zagreb : Hrvatsko Botaničko Društvo, 2016, 188-189

ISBN
978-953-8097-00-3

Skup
5th Croatian Botanical Symposium

Mjesto i datum
Primošten, Hrvatska, 22.09.2016. - 25.09.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Crocus malyi; Crocus vernus; Crocus × velebiticus; Velebit; Hrvatska
(Crocus malyi; Crocus vernus; Crocus × velebiticus; Velebit; Croatia)

Sažetak
Maly's crocus (Crocus malyi Vis., family Iridaceae) is a stenoendemic that so far has been noticed on few localities only, in the middle and south section of Mt Velebit. This research has shown that C. malyi is a relatively common species of rugged thermophilous forests, thermophilous grasslands and other open thermophilous habitats along the littoral slopes of Mt. Velebit. On the other hand, C.vernus (L.) Hill is a species of mesophytic and colder Fagus sylvatica L. forests. Both species grow next to each other on a number of localities forming hybrids, probably hybrid swards as well. In this work we have presented the morphological and ecological characterization of the newly found hybrid C. × velebiticus Randić et Kremer, nothospecies nova. The C. × velebiticus is characterized with several macro morphological traits: plant height 145.4 ± 48.1 mm ; outer perigon leaves length and width 32.6 ± 6.3 mm and 9.3 ± 3.2 mm, respectively ; stamens and anthers length 21.2 ± 3.7 mm and 14.6 ± 3 mm, respectively ; corm length and width 13.8 ± 3.3 mm and 13.4 ± 4.5 mm, respectively. The perigon and perigon´s tube colours are quite variable, while typical specimens are mainly white with a blue-violet 1 to 4 mm wide stripe on the abaxial side of the outer perigon leaves. The stripe extends from the base of perigon leaves up to ½, ⅔ or throughout the perigon leaves length. The inner perigon leaves usually have violet spots on the first ⅓ of the abaxial side length. The perigon throat has a slightly developed yellowish spot and hairs. The stigma is pinnate, usually arranged in 2-3 levels, reddish-orange and in most specimens higher than anthers. The perigon colour of some specimens is violet as in C. vernus, but violet C. × velebiticus specimens possess bracteoles like C. malyi. The existence of bracteoles is a constant trait in all investigated C. × velebiticus specimens, whatever the colour or other variable traits. More or less expressed stunted growth of stamens and/or pistil in some specimens, also indicate the hybrid character of C. × velebiticus. The habitat of C. × velebiticus are usually rocky grasslands with Sesleria juncifolia, Carex humilis, and Bromus erectus s. l. as dominant species, and in most examples it is situated in close proximity to forest patches. The C. × velebiticus specimens chosen for holotypes and isotypes were found on the stony and grassy fire site in the Radlovac area in the middle section of Mt. Velebit, a locus classicus of this hybrid.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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