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Epidernal characters of pterocactus (Opuntioideae, Cactaceae)
(Cactus and Succulent Society of America, 2011-03)
Stem epidermis of eight Pterocactus species was examined under light microscopy (LM) and scanning electron microscopy (SEM). The stomata belong to the paracytic type, with two to five subsidiary cells. The size of stomata ...
Pollen morphology of Austrocylindropuntia Backeb, Maihueniopsis Speg., Opuntia Mill. and Tephrocactus Lem. (Cactaceae, Opuntioideae) of Argentina
(Elsevier Science, 2007-09)
The pollen morphology of the Cactaceae (Opuntioideae) of Argentina was studied under optical and scanning electron microscopy. The following species were considered: Austrocylindropuntia shaferi (Britton and Rose) Backeberg, ...
Evolutionary aspects of the plastomes of subfamily Opuntioideae (Cactaceae)
(Universidade Federal de Viçosa, 2022)
Structure and function of secretory glochids and nectar composition in two opuntioideae (Cactaceae) species
(2020-01-01)
Cactaceae exhibit highly modified spines that are considered to be extrafloral nectaries (EFNs). Despite their ecological and taxonomical relevance in this family, little is known on their structure and function. We have ...
Intriguing thigmonastic (sensitive) stamens in the Plains Prickly Pear Opuntia polyacantha (Cactaceae)
(2013-05-01)
The movement of sensitive stamens in flowers of the Plains Prickly Pear (Opuntia polyacantha) is described in detail along with the external and internal filament anatomy. The goals of this investigation were: (1) to provide ...
Intriguing thigmonastic (sensitive) stamens in the Plains Prickly Pear Opuntia polyacantha (Cactaceae)
(2013-05-01)
The movement of sensitive stamens in flowers of the Plains Prickly Pear (Opuntia polyacantha) is described in detail along with the external and internal filament anatomy. The goals of this investigation were: (1) to provide ...