phloem

First attested in 1872. From German Phloëm, coined by Swiss botanist Carl Nägeli in 1858 from Ancient Greek φλόος (phlóos, “husk, bark”) + a Greek-sounding ending -em (cf. System).

der

(botany) A vascular tissue in land plants primarily responsible for the distribution of sugars and nutrients manufactured in the shoot.


xylem

From German Xylem, from Ancient Greek ξύλον (xúlon, “wood”).

(botany) A vascular tissue in land plants primarily responsible for the distribution of water and minerals taken up by the roots; also the primary component of wood.


meristem

From German Meristem, from Ancient Greek μεριστός (meristós, “divided”), from μερίζω (merízō), from μέρος (méros) + στέμμα (stémma, “wreath, garland”). First used in 1858 by Swiss botanist Carl Wilhelm von Nägeli (1817–1891).

af

Coordinate term: cambium

By looking back at a past populated by beings of grotesque difference, humans could place themselves at the apical meristem—the growing tip—of the future.

2020, Janet Chernela, quotee, “Life Finds A Way”, in Jonathan Elmore, editor, Fiction and the Sixth Mass Extinction, Rowman & Littlefield, →ISBN:

(botany) The plant tissue composed of totipotent cells that allows plant growth.


medulla

en-noun

medulla (plural medullas or medullae or medullæ)

medullas (plural)
medullae (plural)
medullæ (plural)

LL-Q1860 (eng)-Flame, not lame-medulla.wav

Borrowed from Latin medulla (“pith, marrow”), perhaps from medius (“middle”).

The soft inner part of something, especially the pith of a fruit.

(anatomy) The inner substance of various organs and structures, especially the marrow of bones.

髓质

the inner substance of various organs and structures, especially the marrow of bones

(anatomy, neuroanatomy) The medulla oblongata.

(botany) The internal tissue of a plant.


parenchyma

parenchyma (countable and uncountable, plural parenchymas or parenchymata)

parenchymas (plural)
parenchymata (plural)

/pəˈɹɛŋ.kɪm.ə/

From Ancient Greek παρέγχῠμα (parénkhuma, “anything poured in beside”), from πᾰρᾰ- (para-, “beside”) + ἔγχῠμα (énkhuma, “instillation, content of a vessel”), given by the Greek anatomist Erasistratus to the peculiar substance of the lungs, liver, kidneys, and spleen, as if formed separately by the veins that run into them.

af

(botany) The cellular tissue, typically soft and succulent, found chiefly in the softer parts of leaves, pulp of fruits, bark and pith of stems, etc.


vascular tissue

en-noun

vascular tissue (countable and uncountable, plural vascular tissues)

(zoology, anatomy) The arteries, veins, capillaries, and associated tissues in an animal.


collenchyma

collenchyma (countable and uncountable, plural collenchymas or collenchymata)

collenchymas (plural)
collenchymata (plural)

/kəˈlɛŋkəmə/

Ancient Greek κολλα (kolla, “glue”) + -enchyma (“tissue”)

(biology) A living, elongated, mechanical and flexible ground tissue with angular pectin depositions; present just under leaves, tendrils and stems of climbers; formed before vascular differentiation.

kolenchyma

a supporting ground tissue just under the surface of various leaf structures formed before vascular differentiation


sclerenchyma

sclerenchyma (countable and uncountable, plural sclerenchymas or sclerenchymata)

sclerenchymas (plural)
sclerenchymata (plural)

/sklɪəɹˈɛŋkɪmə/

/skləɹˈɛŋkəmə/

(botany) A mechanical ground tissue, impermeable to water, which consists of cells having narrow lumen and thick, mineralized walls of lignin; present in stems, vascular bundles (of monocots), seed coverings, and vein and tips of leaves.

sklerenkima

a mechanical, supportive ground tissue in plants consisting of aggregates of cells having thick, often mineralized walls


aerenchyma

aerenchyma (plural aerenchymas or aerenchymae)

aerenchymas (plural)
aerenchymae (plural)

→ Irish: aereincíoma

(botany) A spongy, airy tissue found especially in the roots of aquatic plants.

aerenkyymi

airy tissue found in the roots of aquatic plants


prosenchyma

(botany) The tissues formed of elongated cells, especially those with pointed or oblique extremities, such as the principal cells of ordinary wood.

προσέγχυμα

the tissues formed of elongated cells, especially those with pointed or oblique extremities


chlorenchyma

From Ancient Greek χλωρός (khlōrós, “green”) (in reference to chloroplast) + -enchyma.

(botany) A mechanical, supportive ground tissue in plants containing chloroplasts.


ground tissue

ground tissue (countable and uncountable, plural ground tissues)

(botany) The basic supportive tissues in plants.


merenchyma

/ˌmɛɹɪŋˈkaɪmə/

(archaic, botany) tissue composed of spheroidal cells


metaxylem

metaxylem (countable and uncountable, plural metaxylems)

(biology) The part of xylem, developing after protoxylem, that has larger cells and vessels.