long megasporophylls

Listing 1 - 9 from 9 for long megasporophylls

The Cycad Pages
... long megasporophylls cm long ovules pubescent glabrous lamina orbicular ovate lanceolate (lamina) mm long (lamina) mm wide (lamina) deeply pectinate shallowly pectinate regularly dentate obscurely dentate with (lateral spines) lateral spines mm long ...
plantnet.rbgsyd.nsw.gov.au

Cycas angulata
... -60 mm long, 15-20 mm wide, fertile zone 30-40 mm long, sterile apex 15-20 mm long, level, apical spine prominent, sharply upturned, 20-30 mm long. Megasporophylls 25-50 cm long, grey-tomentose and brown-tomentose; ovules 6-12, glabrous; lamina lanceolate, 50-105 mm long, 25-35 ...
plantnet.rbgsyd.nsw.gov.au More from this site

AZOLLACEAE [First Draft]
... joint positions of braches; megasporocarps smaller and located undersides of microsprocarps, wraped up by megasporophylls, oblong, contained one megaspore, mouth on top and covered with hat-like, the hap ... with one short beak-like at top, exines thin and tasparent, containing majority of long stolked microsparangia and containing 64 micrspres in each one, the microspores individualy immersedly ...
hua.huh.harvard.edu

Introduction to the Flowering Plants
... earliest flowers. (Soursop flowers are a good local equivalent.) Spirally arranged microsporophylls (anthers) and megasporophylls (carpels) are surrounded by non-spore-bearing leaves (petals and sepals which together ... and flowers co-evolved and flower structure and insect mouth parts have come a long way from these rather haphazard initial relationships. More on flower evolution... . New flowering ...
scitec.uwichill.edu.bb

UGA Plant Biology | Greenhouses | Non-Flowering Plants
... larger photo Zamia skinneri click for larger photo Our largest Platycerium with leaves four feet long click for larger photo This Z. skinneri usually produces more female cones than leaves click ... male cones click for larger photo Cycas wadei female cone with two whorls of old megasporophylls still attached click for larger photo Trunk and cone of male Cycas in foreground with ...
www.botany.uga.edu

Cycad International : Katherine NT Australia
... realise, show remarkable diversity in their physical adaptations; and, perhaps, despite an apparently long history of genetic stability, they may still retain a potential for further significant ... genera, the megasporophylls of Cycas do not form a determinate female cone, although they are somewhat tightly clustered together when first emerging. After pollination, the megasporophylls of certain ...
www.cycadinternational.com.au

Cycad Society SA: Encephalartos aplanatus
... to 400mm longand 120mm in diameter. Peduncles are stout and up to 60mm long. The exposed faces of megasporophylls are flat, smooth and also hairless, like the microsporophylls. The facets are indistinct ... and the female cones disintegrate in early to mid Spring. Seeds are ellipsoid, about 25mm long and 13mm to 15mm in diameter. The sarcotesta is bright red. Distribution & Habitat The species ...
www.cycadsociety.org

Cycad Society SA: Encephalartos hirsutus
... They are about 400mm long and 350mm in diameter, appearing sessile but with a peduncle up to 60mm long, hidden amongst cataphylls in the trunk crown. The median megasporophylls (female cone scales) are rhombic with four lateral and one central facet, about 50mm wide, 44mm long and ...
www.cycadsociety.org More from this site

lycopod picture links
... lycopods. Tree-like lycopods were heterosporous; in some forms the megaspores with surrounding megasporangia and megasporophylls look almost seed-like. Unlike in any other type of tree which all have ... dichotomous; large branch scars of lateral branches have been described as Ulodendron. Leaves were long, narrow and stiff (Lepidophyllum); those of the the ultimate branches being smaller and needle- ...
www.uni-muenster.de

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