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The species are commonly known as lady palms. They are fan palms (subfamily Coryphoideae ), with the leaves with a bare petiole terminating in a rounded fan of numerous leaflets. The plants have thin stems growing to 3–4 m tall, branching at the base, forming clumps and are dioecious , [ 2 ] with male and female flowers produced on separate ...
The leaves have short or absent petioles and possess the rare feature among pinnate palms of induplicate (V-shaped) leaflets. The plants are dioecious, with male and female flowers on separate plants; pollination is by both wind and insect. The flowers are inconspicuous yellowish-brown and about 1 cm wide, but grouped on conspicuous large ...
Female upperside tawny, veins black. Forewing: the dorsal margin broadly black; the apical area beyond a line curving from the tornus, round apex of the cell and a little beyond it, to the base of the costa also black, the wing crossed preapically by a conspicuous, broad, oblique white bar, and three subterminal white spots.
The gynoecium is often referred to as female because it gives rise to female (egg-producing) gametophytes; however, strictly speaking sporophytes do not have a sex, only gametophytes do. [1] Gynoecium development and arrangement is important in systematic research and identification of angiosperms , but can be the most challenging of the floral ...
a sexual system for plants when female, hermaphrodite, and gynomonoecious plants coexist in the same population. [24]: 360 Monoicy: one of the main sexual systems in bryophytes. [17] In monoicy male and female sex organs are present in the same gametophyte. [18] Monoecy: a sexual system in which male and female flowers are present on the same ...
The male plant's strobilus, or cone, is oblong-ellipsoidal, 30–60 cm (12–24 in) long, orange in colour and foetid in odour. The female's megasporophylls are about 30 cm long, fleshy, brown and densely hairy, with the fertile area about 35 mm (1.4 in) wide. The seeds are 45 mm long and 30 mm wide, ripening from green to an orange- or reddish ...
Or, with bisexual and at least one of male and female flowers on the same plant. [2] Protandrous: (of dichogamous plants) having male parts of flowers developed before female parts, e.g. having flowers that function first as male and then change to female or producing pollen before the stigmas of the same plant are receptive. [6]
The typical form of Borassus aethiopum is a solitary palm to 25 metres (82 feet) in height and 1 m (3.3 ft) in diameter at the base. In the river bottoms (floodplains) of many East African rivers (the Rufiji in Tanzania and the Tana in Kenya among others) a closely related form can be up to 7 ft (2.1 m) thick at breast height (4 ft or 1.2 m above ground) and having the same thickness in its ...