Morphology and anatomy of Rhipsalis cereuscula, Rhipsalis floccosa subsp. hohenauensis and Lepismium cruciforme (Cactaceae) seedlings

Alan C. Secorun, Luiz Antonio De Souza
2011 Revista Mexicana de Biodiversidad  
Morphology and anatomy of Rhipsalis cereuscula, 5KLSVDOLV ÀRFFRVD subsp. KRKHQDXHQVLV and /HSLVPLXP FUXFLIRUPH (Cactaceae) seedlings Morfología y anatomía de las plántulas de Rhipsalis cereuscula, 5KLSVDOLV ÀRFFRVD subsp. KRKH-QDXHQVLV y /HSLVPLXP FUXFLIRUPH (Cactaceae) Abstract. Rhipsalis cereuscula Haw., 5KLSVDOLV ÀRFFRVD subsp. hohenauensis (F. Ritter) Barthlott et N. P. Taylor and Lepismium cruciforme (Vellozo) Miquel are obligatory epiphytes that occur frequently on tree trunks of remnant
more » ... trunks of remnant forests in Maringa, Paraná state, Brazil. Morphological and anatomical analyses regarding the seedlings were carried out. The seedlings were prepared according to techniques of resin inclusions and histochemical tests. Seedlings were phanerocotyledonar and originated from seeds with operculum. The root was diarch and the hypocotyl presented transition root-stem structure. The cotyledons were sessile, reduced, with homogeneous mesophyll. The epicotyl (phylloclade) presented a lot of parenchyma and reduced vascular cylinder. The 3 studied species showed anatomical characteristics similar to those described for species of Lepismium and Rhipsalis as well as other cacti. Resumen. Rhipsalis cereuscula Haw., 5KLSVDOLV ÀRFFRVD subsp. hohenauensis (F. Ritter) Barthlott et N. P. Taylor y Lepismium cruciforme 9HOOR]R 0LTXHO VRQ HSt¿WRV REOLJDWRULRV TXH IUHFXHQWHPHQWH KDELWDQ HQ ORV WURQFRV GHO árbol de matorrales secundarios de Maringá, Paraná, Brasil. Se analizaron la morfología y anatomía de las plántulas de estas especies. Las plántulas fueron procesadas según las técnicas de inclusión en resina y pruebas histoquímicas. /DV SOiQWXODV VH FODVL¿FDURQ FRPR IDQHURFRWLOHGRQDUHV \ VH RULJLQDURQ GH VHPLOODV FRQ RSpUFXOR /D UDt] HUD GLDUFD \ HO KLSRFyWLOR SUHVHQWy HVWUXFWXUD GH WUDQVLFLyQ UDt]WDOOR /RV FRWLOHGRQHV IXHURQ VpVLOHV UHGXFLGRV FRQ HO PHVy¿OR KRPRJpQHR (O HSLFyWLOR ¿ORFODGLR SUHVHQWy PXFKR SDUpQTXLPD \ HO FLOLQGUR YDVFXODU UHGXFLGR /DV HVSHFLHV presentaron características anatómicas similares a las descritas para especies de Lepismium y Rhipsalis, así como otras cactáceas. 3DODEUDV FODYH HSt¿WR UDt] KLSRFyWLOR FRWLOHGRQHV HSLFyWLOR DUHROD
doi:10.22201/ib.20078706e.2011.1.371 fatcat:iyy7launnzbh3i23tffrnddr4a