uncommon. Two consecutive whorls of dimerous petals are often mistaken for tetramerous petals. If all of the whorls in a given floral arrangement have the same...

Potamogeton and Paris quadrifolia (herb-paris) are examples of monocots with tetramerous flowers. Other plants exhibit a mixture of characteristics. Nymphaeaceae...

central, small, fertile pentamerous ones, and a few peripheral, large, tetramerous ones; the latter are usually sterile, and whitish to pale blue or pinkish...

Tetramerous flower of Ludwigia octovalvis showing petals and sepals...

suggests that the medusa form evolved after the polyps. Medusozoans have tetramerous symmetry, with parts in fours or multiples of four. The four major classes...

the adult or sexual phase), planula larva, polyp, medusa. Symmetry is tetramerous, with parts in fours or multiples of four. The mitochondrial DNA molecules...

sepals, five petals, five stamens and five carpels. All the others are tetramerous (four of each part). They bear brown seed capsules when pollinated. In...

gynoecium. The androecium is obdiplostemonous. Only a few genera are tetramerous (Francoa, Dimorphopetalum, Melianthus). In some genera some stamens (Pelargonium)...

of each flower In threes (flowers are trimerous) In fours or fives (tetramerous or pentamerous) Number of furrows or pores in pollen One Three Number...

Highlands of Venezuela and Guyana. Monochaetum is characterized by its tetramerous flowers, prevailingly dimorphic stamens with dorsally appendiculate anthers...

approximately 3–3.5 metres in height. Key morphological characteristics include: Tetramerous pink flowers with four petals Eight stamens with S-shaped anthers Linear-lanceolate...

deciduous trees with simple leaves, racemose inflorescence, unisexual tetramerous flowers and drupaceaous fruits Except Nothopegia heyneana (Hook. f.)...

respect to flowers, five parts in each whorl. See also trimerous and tetramerous. pepo A type of berry formed from an inferior ovary and containing many...

slight apiculate apex, cuneate base and a crenate margin. The flowers are tetramerous, or sometimes pentamerous, with a white corolla, possibly marked with...

pendulous, brightly coloured inflorescences bear 16–25 pendulous, tubular, tetramerous, ornithophilous 5–6 cm long flowers with a red calyx and yellow-orange...

often joined. No stomata are present on the leaves. The flowers are tetramerous: the floral formula (sepals; petals; stamens; carpels) is [4;0;4;4]....

four sepals, and four petals in the blossom.[better source needed]. The tetramerous condition has been described for several species of Trillium including...

is a discoid circle (or single-whorled umbel) of about twenty tubular tetramerous flowers. Below these is a second set of bracts very different from the...

in groups of three or four. The bisexual flowers are zygomorphic and tetramerous. The flowers may be yellowish-white to pink in colour and are borne on...

long. The flowers are hermaphrodite or unisexual about 1 cm 1 diameter, tetramerous, clustered in three-flowered axillary racemes, pedicels about 3–5.9 mm...

actinomorphic, white, yellow, or purple, trimerous or rarely di- and tetramerous flowers extend beyond the water surface. The petals are oval-shaped,...

(Mimosaceae) - 8 A revision of the Uninerves - Triangulares, in part (the tetramerous species)". Nuytsia. 2 (5): 322–325. Retrieved 5 September 2025. Maslin...

the flowers. In the middle of the inflorescence the tubular, about 20 tetramerous flowers form a discoid circle (or flat umbel) about 8 cm (3.1 in) diameter...

genus Acacia - A revision of the Uninerves - Triangulares, in part (the tetramerous species) as published in the journal Nuytsia. It was reclassified as...

surface. Flowers are solitary and can be axillary or terminal. They are tetramerous, without free hypanthium. There are a distinct calyx, which consists...

ones where a judgement can be made without enlargement) are (tri- or) tetramerous. The vast majority of Asteraceae have pentamerous florets, and several...

long, during fruiting. The flowers are hermaphroditic, zygomorphic, and tetramerous. Floral formula: X  or  ∗ K ( 4 − 5 ) , [ C ( 4 )  or  ( 2 + 3 ) , A...

emerge in bundles directly from the stem. The flowers are small and tetramerous or pentamerous. They are directly attached to the stem via a pedicel...

regeneration of limbs in the Mantidæ, and the constant occurrence of a tetramerous tarsus in limbs regenerated after self-mutilation among the Orthoptera...

citing a botanical name. Harold St. John and Charles S. Parker (1925) A tetramerous species, section, and subgenus of Carex. American Journal of Botany 12...

(Mimosaceae) – 8 A revision of the Uninerves – Triangulares, in part (the tetramerous species) published in the journal Nuytsia. The type specimen was collected...

hermaphrodite as in Hecastocleis, while Gymnarrhena has (trimerous or) tetramerous male florets, not pentamerous. Hecastocleis shockleyi was described by...

Stemonaceae species, flowers are composed of four identical parts, i.e., tetramerous, or sometimes dimerous (two-parted). Four stamens are present. In most...

(Mimosaceae) - A revision of the Uninerves - Triangulares, in part (the tetramerous species) as published in the journal Nuytsia. It was reclassified as...

leaves have a brochidodromous pattern of venation and its flowers are tetramerous. In addition, only one of the stamens is fertile. The others are modified...

inflorescence and individual flowers, respectively) are velvety. The flowers are tetramerous (i.e. having four sepals and petals). The sepals are creamy yellow in...

three sepals of variable size, and in male flowers six to many stamens. Tetramerous flowers have four sepals of 5 mm long at most and either four or eight...

initially yellow but later coloring orange to scarlet. The lower part of the tetramerous perianth is fused into a tube, the middle part that consist of the claws...

gynoecium. The androecium is obdiplostemonous. Only a few genera are tetramerous (Francoa, Dimorphopetalum, Melianthus). In some genera some stamens (Pelargonium)...

that of many other Proteaceae. Flower parts occur in multiples of four (tetramerous), but the four tepals are fused into a long, narrow perianth-tube topped...

(Mimosaceae) - 8 A revision of the Uninerves - Triangulares, in part (the tetramerous species)". Nuytsia. 2 (5): 305–308. doi:10.58828/nuy00046. Retrieved...

on its trunks, branches, branchlets, and leaf rachises. Flowers are tetramerous, with a perianth in two series. It sepals have been found as pale purplish...

Inflorescences up to 250 mm long if solitary, much shorter if tufted. Flowers: tetramerous. Sepals free or slightly connate, the outer two usually slightly smaller...

stipitate (stalk). The flowers are similar in form to Meriania species, but tetramerous (in four parts). The receptacle (the axis of a flower) is urceolate (shaped...