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longitudinal ptyxis
Listing 1 - 2 from 2 for longitudinal ptyxis
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dichotomous key midrib leaflets articulated sterile apex ptyxis erect prickles leaflets horizontal ptyxis leaves emerging singly female cones sporophylls simple cones stalked leaves pinnate leaves bipinnate leaves leaf wide ceratozamia description habit dioecious female cones distinguishing characters leaves
dichotomous key midrib leaflets articulated sterile apex ptyxis erect prickles leaflets horizontal ptyxis leaves emerging singly female cones sporophylls simple cones stalked leaves pinnate leaves bipinnate leaves leaf wide ceratozamia description habit dioecious female cones distinguishing characters leaves
The Cycad Pages
... emerging singly. Cataphylls absent. Leaves: bipinnate, longitudinal ptyxis circinate, horizontal ptyxis involute. Leaflets with circinate ptyxis and often a true terminal leaflet, lower leaflets not reduced to spines. Petioles lacking spines or prickles. Leaflets flat, lacking a midrib, with numerous subparallel longitudinal ...
plantnet.rbgsyd.nsw.gov.au
The Cycad Pages
... arranged, interspersed with cataphylls, lower leaflets not reduced to spines. Petioles often with prickles. Longitudinal ptyxis erect, horizontal ptyxis erect. Leaflets simple, entire, with numerous bifurcating parallel veins and no distinct midrib, leaflets ...
plantnet.rbgsyd.nsw.gov.au More from this site
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