What is polygamous? Give an example. - Biology Discussion
网页A plant is termed as polygamous if it bears some flowers with stamens only, some with pistils only, and some with both, on the same or different plants.For example, Acer rubrum (red maple). Write your answer. Register or Login. Cookie.
Biology Notes on Flowers | Plants - Biology Discussion
网页ADVERTISEMENTS: The below mentioned article provides biology notes on Flowers or Floral Organs. Flower is a specialized condensed shoot of an angiospermic plant in which the shoot apical meristem gets transformed into floral meristem for carrying out sexual reproduction through progressive specialisation of leaves into floral appendages. Like a …
Sapindaceae: Characters, Distribution and Affinities - Biology …
网页Characters of Sapindaceae: Trees, shrubs or climbers usually pinnate leaves, the spring like circinately, coiled tendrils of lianous genera. Flowers polygamous or polygamodioecious; the scale or gland-appendaged petals; unilateral extrastaminal disc, tricarpellate ovary, trilocular, superior and usually arillate seed. Trees, shrubs or climbers ...
Flacourtiaceae: Characters, Distribution and Affinities
网页Characters of Flacourtiaceae: Plants, shrubs or trees, monoecious or dioecious; flowers hermaphrodite, actinomorphic; numerous stamens; the variously modified disc and often enlarged receptacle,; undifferentiated perianth; anthers often attenuate or appendaged; a disc present between stamens and pistils; carpels 2-10. A. Vegetative characters:
Parts of a Typical Flower (With Diagram) - Biology Discussion
网页Flower develops on the mother axis (stem) in the form of floral bud. A typical angiosperm flower has following parts: ADVERTISEMENTS: 1. Bract (= Hypsophyll): It is a leaf like structure in whose axil a flower often develops. 2. Pedicel: It is the stalk of the flower which may be short, long or even absent.
Classification of Sapindales: 6 Families | Dicotyledonae
网页Inflorescence is a thyrsus type of panicle, terminal. Flowers are polygamous, obliquely zygomorphic; male flowers in the upper part of the inflorescence and the bisexual flowers in the lower part. Sepals 5 united, lobes valvate. Petals 5 or 4, free, imbricate. Stamens 8-5; inserted on a disc; anthers introrse; disc is often one-sided.
Classification of Parietales: 11 Families | Dicotyledonae
网页(4) Flowers are polygamous, some male flowers have 10 stamens with sessile anthers at the throat of an elongated corolla tube, others with only 5 long filament stamens attached near the base of the ovary. Such flowers with variable morphology are met with in same species, e.g. Carica papaya Linn. In Carica quercifolia Solms. the ovary is 5-celled.
Biological Classification Archives - Biology Discussion
网页0 Ans. Can the animals of different species breed together? 13 Ans. Why is it not sufficient to use common names for different kinds of plants and animals? 0 Ans. Both gymnosperms and angiosperms bear seeds, then why are they classified separately? 0 Ans. What are the advantages of five kingdom classification? 0 Ans.
Classification of Urticales: 3 Families | Dicotyledonae
网页Flowers of Urticaceae is very small, unisexual monoecious or dioecious rarely polygamous in cymose clusters on short axillary shoots, often crowded in heads, rarely catkin-like. Perianth of 4 sepaloid segments, rarely 5, in 2 whorls; free in male flowers, more or less connate and persistent in female flowers.
Caricaceae: Characters, Distribution and Economic Importance
网页(iv) Polygamous flowers of two sorts, one of 10 sessile stamens and another with 5 stamens. Calyx: Small, rotate, cupular or shortly tubular, teeth or segments long or short; in pistillate flower calyx segments are comparatively longer than that of staminate ones. Corolla:
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