2 0 obj 4 0 obj CREEPERS 2. PETIOLE 5. (ii) A leaf is always borne at the node of stem. Bark brownish, smooth; blaze orange red. In some plants the leaf has a swollen leaf base. <> LAMINA. The stalk of the leaf is called petiole. Leaves simple, alternate, spiral, clustered at twig ends; stipules small, lanceolate, caducous; petiole 1.2-4 cm long, swollen at both ends, planoconvex, glabrous, with subulate appendage at the junction of lamina; … (i) The leaf is a lateral dissimilar appendage of the stem. endobj The present study is focused on Agrobacterium mediated transformation of A. paeoniifolius using β-glucuronidase (GUS) reporter gene. A pulvinus on a petiolule is called a pulvinulus. The cells of this region are very small, thin-walled and with dense protoplasm. (iv) It is exogenous in originand develops from the swollen leaf primordium of the growing apex. Leaf axil is the angle formed by the base of the leaf and stem. Branches and Branchlets. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. %���� Phyllodes develop usually vertically and possess fewer stomata hence, reduce transpiration, e.g. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ … %PDF-1.7 <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 720 540] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> About half a score species are at present in cultivation, which come from China, Japan, the Himalaya, and Mexico. c. Pedicie is the stalk of flower while peduncle is the stalk of inflorescence. Explain various modifications of Petiole with help of well labelled diagram? Reticulate venation is found in which plants? When the petiole is present, this feature describes how the petiole is attached to the leaf lamina (blade). Leaves are termed as food factories. The Biotik Team, French Institute of Pondicherry Attributions. Pulvini may be present at the base or apex of the petiole or where the leaflets of a compound leaf are inserted into the rachis. The single leaflet is articulated … A leaf with stipules is called stipulate while the one without stipules is termed as exstipulate. (iii) Leaf: These are green in colour. In many cases, the petiole of the leaf is not distinct and such a leaf is called sessile. Leaf MCQ (Multiple Choice Questions and Answers) Q1. All specimens ... 13 Petioles spinescent throughout, including across swollen petiole base 14 Leaflets 9–16 mm wide; petiole 30–60% of leaf; trunk not swollen at base ..... 12. In case of Eichhornia, the petiole is modified to a swollen and spongy structure called the swollen petiole. CONDUCTION 3. 2.61 B) etc. Fill in the blanks with the terms that are listed below. Pulvina are common in the bean family Fabaceae and the prayer plant family Marantaceae. (vi) The leaves do not possess any apical bud or a regular growing point. Eg., Salvinia. endobj Leaves: Leaves slightly spaced along branches or clustered at end of branches, spiral (leaves occurring singly at a node and arranged spirally up the branchlet) (internodes short so leaves often appearing pseudo-whorled), simple (a leaf composed of a single blade) (with milky white exudate when damaged); petiole present, not winged, attached to base of leaf blade, not swollen; leaves broadest above middle, … Leaves with swollen petiole joints* Terminal pyramidal panicles of numerous, small flowers Blooming in early summer; adequate moisture required for optimum performance, or foliages browns up and plant dies prematurely; clumps need dividing every 3-4 years; utilization in shade gardens, borders, massing, around water features, cut flowers, or pot plants. (iii) Generally there is always an axillary budin the axil of a leaf. The type of petioles encloses much air and helps the plant to float. These leaves are following types : Unifoliate : In this case, a palmately compound leaf is reduced to a single terminal leaflet. anther, male, ovary, ovule, petals, pistil, stamen, filament. According to the number of leaflets present at the tip of the petiole. It is the organ facilitating the movement of the leaf. Phyllode is a modification of- (a) Petiole. 100% (1/1) It is located at the point where the petiole joins the leaf to stem. There may be swollen regions at either end of the petiole known as pulvina (singular=pulvinus) that are composed of a flexible tissue that allows leaf movement. Phyllode. ... abruptly widening into a salver-shaped limb (against funnel-campanulate in sect. Threat Level: Medium Pheidole megacephala is a common species in the Pacific with two waist segments, 12-segmented antennae, 3-segmented antennal clubs, propodeal spines, long thin pilosity, and a bimorphic worker caste. Insectivorous Leaves This petiole is full of air and helps the plant to float, e.g., water chestnut, Trapa bispinosa of Onagraceae; water hyacinth, Eichhornia crassipes of Pontederiaceae (Fig. Region of meristematic tissue – it is present a few millimeters above the root cap. The minor workers are small, yellow to brown, small propodeal spines, and no antennal scrobes. <> Trunk & Bark. In the present investigation, synthesis of silver nanoparticles was performed using swollen petiole extract of water hyacinth as a reducing agent. (vii) A leaf has three main parts – Leaf base, petiole and leaf lamina. Leaves opposite, or in threes; corolla tubular to bell-shaped; calyx composed of two to five sepals, which remain long on the plants after the corolla has fallen; stamens four. There may be swollen regions at either end of the petiole known as pulvina (singular= pulvinus) that are composed of a flexible tissue that allows leaf movement. If the petiole has a swollen area at the base, where it joins to the stem, the swollen area is known as a pulvinus (plural, pulvini). 4. Question 19. The reduction of silver chloride to silver nanoparticles b. In some leguminous plants the leafbase may become swollen is called pulvinus. Leaves. Is the broad part of leaf. stream Ovules are present in this part of flower. 4. For eg., Australian Acacia. This is known as phyllode. C. … endobj Swollen or Spongy petiole : Sometimes the petiole becomes swollen and spongy due to the development of aerenchyma. Leaf base : The part of the leaf which is attached to the stem or a branch is called leaf base. Absorbing leaves are found in (a) In hydrophytes, Parallel Venation is not found in- (a) Maize, Structure and Functions of Cell Organelles, Plant Tissue - Internal Morphology and Anatomy, Internal Structure of Root, Stem and Leaf. Solution: Across 1. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. The swollen joints of the leaves where the movement occurs are pulvini. Fabaceae Marantaceae Nyctinasty Petiole (botany) Thigmonasty. The plant sample (Fig. Petioles of such kind are called phyllode. In some aquatic plants, the petiole becomes swollen and spongy. OVARY 4. Pulvinus is the swelling at the base of a leaf. The petiole is swollen and includes the following internal structu­res: a. Epidermis: They divide repeatedly. Swollen petiole Habit. Question 4: The root nodules present in the roost of leguminous plants are a modification of ; tap roost ; adventitious roost ; fibrous roost ; it is not a modified structure ; Correct Option is : 1. e.g., Trapa bispinosa and Eichhornia. Trees up to 18 m tall. Swollen petiole of Eichhornia is made up of Aerenchyma Sclerenchyma Chlorenchyma Collenchyma. Hypodermis is partly chlorenchymatous and partly collenchyma (Fig. It is called ligule. Herbarium collections held by A, B, BM, BO, E, HN, K, KNF, KUN, G, L, LAE, LE, NY, PE, P and U have been examined. Sculpture on the minor worker is restricted to the middle and posterior portions of … Leaf base often contains two small lateral outgrowths called stipules. Australian Acacia, Parkinsonia, etc. d. In spike … 3. It is known as pulvinus eg. ANTHER Down 1. In botany, the zucchini's fruit is a pepo, a berry (the swollen ovary of the zucchini flower) with a hardened epicarp.In cookery, it is a vegetable, usually cooked and eaten as a savory dish … 3 0 obj Ordinary zucchini fruit are any shade of green, though the golden zucchini is a deep yellow or orange. When the petiole is present, the leaf is said to be petiolate or stalked. The petiole help hold the blade to light. x��}��e�u�� �?�Ǚ :��Rl�qةc)ڠ�aK)4J�8��M~�F�g8yh�����;�orqq��������÷���������/�����������{��?�j����o��#'����߾���z����@��x��=Z��r��3��=~���Ͽ���w�Ϗ/���wo��ӟ>~�����������������7x����?J��X�/ŵ�7G��g)����(�˯��c\��/߾��w���||�7o���hD����|��t���o�����?~��_����;9=s:��>��OWJ=���[���E����}z�����?���������÷�}z��z_&���!���{��ǔ�� G�������{�+�c^3�8����.>�1��1H���1��;��1�Q�������wQ'�3��1ǞV���SJ}�4'8���B=-�hR�1�X�G��y,�G����C��y,"S)�Y)~3�L��_�N�K���²|z�x�?����?����r��c9�wk��#�xܻ�r,�DZp��{�K���\�>�T��]?f�n}>>�w��������;W��'4����� �ٿ}�oc�u��㽯s��ӝ��i_��{��:�ű����_������������w�~8�ů�����߾��~3r�����wT���wǿ��_������}��:j;~�������G���o���_�"��ը�g;Z���Y����k�Y��[{�r���{���W����Y��z_����_��'.���OS�?~k�㨺���/Ɗ��y=sJٽ�>�JB;��c���t8m`7�O�� ����ǩy �� ���&�:�8*�@d � ��@A��qL@���Hz�6�$@G{ԏc���s� Ҩ��Z'��%� pO�a"%� H��t���� �Z$�׀�@�JF���q*:*�Q�i����{NGT ]�~��c�0-/_(�! Sepals, (a)____ . In some plants petiole becomes swollen and spongy due to the development of aerenchyma. The petiole is either: attached to surface of leaf lamina ... (hence, not peltate) Note: this is the most common form of petiole attachment to the leaf lamina (blade) Petiole swollen at either end. 10.7). ... swollen – Pulvinus leaf base. b8������� ��u�G����P�(��R�����eqҢȝ�7VM�.���5�@8HgN�����֪�zW n@�s� W@��5��ciYz��d[i�ZK�SF���^ �,�1�/> ��LJD�A��+�@d1�9�c�0�{�r��0�T��@��$]P7�S�(��p ��kp1��. Part of the leaf modified into tendril in Clematis is Petiole Rachis Petiolules All the above Answer: 4 Q2. Abelia), the petiole bases are swollen, … In grasses an outgrowth is present between leaf base and lamina. <>/Metadata 4297 0 R/ViewerPreferences 4298 0 R>> The compound leaves may be of two types (Figure 5.8). Branchlets terete, glabrous, with scars of fallen leaves. In a… 1) was authenticated by experts from Botany Department of Modern College, Pune. When the petiole is present, this feature describes the presence or absence of a swelling at the base and/or … In some plants, the petiole becomes flattened, taking the shape of a leaf and turns green in colour. Petiole – The petiole helps hold the blade to light. The type of petioles encloses much air and helps the plant to float. Phyllode: It is the petiole which becomes flattened in a vertical plane and takes up the appearance of a leaf blade. Such a modified petiole is called phyllode. At each leaf axil is present a bud, which gives rise to a branch. N. Ayyappan Swollen petiole (0 ratings) Male flowers ... alternate, spiral, usually at the end of the twigs; petiole 4-10 cm long, terete, glabrous, swollen at both ends, pair of glands present at the junction of lamina above; lamina 15-32 x 4-11 cm, usually narrow elliptic to oblanceolate, apex acuminate, base cuneate, margin … Leaves 3 (-5)-lobed, to 35 cm wide and long, each lobe coarsely toothed or sublobed, the teeth or sublobes (at most 1-2 per cm of margin) attenuate-acuminate; multiple fruit spherical and merely rough on the surface, consisting of multiple achenes with tawny bristles; buds infrapetiolar (completely hidden in the swollen petiole base)…Platanus In Opuntia, the leaves of areoles are modified into Spines Glochidia Scales Tendrils Answer: 1 Q4. Long thin flexible petioles allow leaf blades to flutter in wind, thereby ... A bud is present in the axil of petiole in both simple and compound leaves, but not in the axil of leaflets of the compound leaf. 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While the one without stipules is called stipulate while the one without stipules is termed as.. Luffa Answer: 4 Q2 region are very small, thin-walled and with dense protoplasm GUS ) gene...

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