What is decurrent leaf base?
Definition. Referring to a leaf blade base that extends down the petiole.
What is a cuneate base?
Definition. Wedge-shaped; referring to the base of a leaf blade of which the angle formed by the meeting of the margins is less than 90°.
What are decurrent trees?
A “decurrent branching habit” is a plant form common for shrubs and most angiosperm trees, contrasted with the excurrent or “cone-shaped crown” common among many gymnosperms. The decurrent habit is characterized by having weak apical dominance that eventually produces a rounded or spreading tree crown.
What is a leaf base?
The leaf base is the slightly expanded area where the leaf attaches to the stem. The paired stipules, when present, are located on each side of the leaf base and may resemble scales, spines, glands,… In angiosperm: Leaves.
What are leaf base types?
Some common types of leaf bases found in angiosperms are given below.
- Pulvinus: ADVERTISEMENTS:
- Sheathing Leaf Base:
- Decurrent Leaf Base:
- Free Lateral Stipules (Fig.
- Scaly stipules:
- Adnate Stipules:
- Interpetiolar Stipules:
- Intrapetiolar Stipides:
What is Perfoliate leaf?
Definitions of perfoliate leaf. a leaf with the base united around–and apparently pierced by–the stem. type of: simple leaf. a leaf that is not divided into parts.
What is decurrent growth in trees?
In contrast, decurrent, or sometimes called deliquescent growth habit exhibits several roughly equal branches arising from the trunk or stem that become the main structural system of the plant.
What is decurrent stem?
decurrent. / (dɪˈkʌrənt) / adjective. botany extending down the stem, esp (of a leaf) having the base of the blade extending down the stem as two wings.
What is base of plant?
In biology, ‘base’ means the part of a plant or animal organ that is near the point of attachment to the ground or to a more basal part of the body.
What is called Pulvinus?
The swollen leaf based is called as pulvinus. It is present at the base or apex of the petiole. Pulvinus leaf base is commonly seen in leguminous plants. Bulbs are storage organs with fleshy leaves.
What is meant by Amplexicaul?
Definition of amplexicaul of a leaf. : sessile with the base or with stipules surrounding the stem from which it arises — compare perfoliate.
What is fasciculus cuneatus?
Medical Definition of fasciculus cuneatus : either of a pair of nerve tracts of the posterior funiculus of the spinal cord that are situated on opposite sides of the posterior median septum lateral to the fasciculus gracilis and that carry nerve fibers from the upper part of the body.
What is Cuneate Leaf?
Noun. 1. cuneate leaf – a wedge-shaped leaf having the acute angle at the base. simple leaf – a leaf that is not divided into parts.
What is Caudex tree?
Definition of caudex 1 : the stem of a palm or tree fern. 2 : the woody base of a perennial plant.
What is Deliquescent tree?
Deliquescent branching: A mode of branching in trees in which the trunk divides into many branches leaving no central axis, as in elms.* Many deciduous trees have deliquescent branching patterns.
What is base root stem?
In summary, The root is the first part of the word. The base is the part of the word that can accept any affix. The stem is the part to which the last affix is added and the affix is usually inflectional. A root can be a base and a stem.
What are the 7 parts of a plant?
The basic parts of most land plants are roots, stems, leaves, flowers, fruits, and seeds. The function of each plant parts is described below.
What are the different leaf bases?