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A broad, flat petiole that replaces the blade of a foliage leaf.
(invertebrate zoology)
A petal-shaped group of ambulacra near the mouth of certain echinoderms.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a petiole that is broadened in the shape of a leaf and fulfills the functions of the leaf blade, which is absent or partially reduced. Phyllodes are present in many Australian acacias and in some Australian cassias. Phyllodes characterize a number of plants that grow in the USSR, including Lathyrus missolia. Phyllodes apparently serve as an adaptation to a decrease in transpiration.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Water relations of compound leaves and phyllodes in Acacia koa var.
Because only 2 benign phyllodes tumor were reported as fibroadenoma, while 12 fibroadenomas were reported as benign phyllodes in core needle biopsy.
However, our findings are in contrary to the reports by Nzegwu et al, [26] Irabo and Okolo et al [27] and Chalya PL et al [28] where patients with benign phyllodes were aged below 20 years of age.
Fibroadenoma of breast was suspected but due to the rapid rate of enlargement and large size, malignant phyllodes could not be ruled out.
Palabras clave: Reconstruccion inmediata de mama; Tumor phyllodes; Fibroadenoma gigante; Calidad de vida; ANDI.
Cystosarcoma phyllodes is a very rare condition having the potential of rapid growth and mimicking giant fibroadenomas (1, 12, 13).
In the group with unilateral disease, the diagnosis was giant fibroadenoma in 16, benign phyllodes tumour in 3, malignant phyllodes tumour in 1, fibrocystic disease in 1 and hamartoma in 2 patients.
A 25 years old unmarried woman was operated for a huge fungating tumor of right breast, proved to be a benign phyllodes tumor by preoperative and post-operative biopsy by two different renowned histopathology laboratories.
Distinction between fibroadenoma and phyllodes tumour is challenging on core needle biopsy13,14.
To the Editor: Phyllodes tumors are rare fibroepithelial malignancies of the breast and account for <1% of all malignant breast tumors.[1] It is difficult to distinguish from fibroadenomas, while malignant cystosarcoma phyllodes can grow in size quickly and metastasize early.[2] Gigantic cystosarcoma phyllodes of the breast is very rare, thus limiting our understanding of the disease and influencing diagnostic and management outcomes.
Less frequently, it consists of malignant phyllodes tumor-like hypercellular stroma and leaf-like glands.