Part 253

Phyl"lode (?), n. (Bot.) Same as Phyllodium.

Phyl`lo*din"eous (?), a. (Bot.) Having phyllodia; relating to phyllodia.

||Phyl*lo"di*um (?), n.; pl. Phyllodia (#). [NL., fr. Gr. &?; leaflike; ||&?; leaf + &?; form.] (Bot.) A petiole dilated into the form of a ||blade, and usually with vertical edges, as in the Australian acacias.

Phyl"lo*dy (?), n. [See Phyllodium.] (Bot.) A retrograde metamorphosis of the floral organs to the condition of leaves.

Phyl"loid (?), a. [Phyllo- + - oid.] Resembling a leaf.

Phyl`lo*ma"ni*a (?), n. [Phyllo- + mania.] (Bot.) An abnormal or excessive production of leaves.

Phyl"lome (?), n. [Gr. &?; foliage, fr. &?; a leaf.] (Bot.) A foliar part of a plant; any organ homologous with a leaf, or produced by metamorphosis of a leaf.

||Phyl`lo*mor*pho"sis (?), n. [NL. See Phyllo-, Morphosis.] (Bot.) The ||succession and variation of leaves during different seasons. R. ||Brown.

Phyl*loph"a*gan (?), n. [Phyllo- + Gr. &?; to eat.] (Zoˆl.) (a) One of a group of marsupials including the phalangists. (b) One of a tribe of beetles which feed upon the leaves of plants, as the chafers.

Phyl*loph"a*gous (?), a. (Zoˆl.) Substituting on leaves; leaf- eating.

Phyl*loph"o*rous (?), a. [Phyllo- + Gr. &?; to bear.] (Bot.) Leaf-bearing; producing leaves.

Phyl"lo*pod (?), n. (Zoˆl.) One of the Phyllopoda. [Also used adjectively.]

||Phyl*lop"o*da (?), n. pl. [NL., fr. Gr. &?; a leaf + -poda.] (Zoˆl.) ||An order of Entomostraca including a large number of species, most of ||which live in fresh water. They have flattened or leaflike legs, ||often very numerous, which they use in swimming. Called also ||Branchiopoda.

In some, the body is covered with a bivalve shell (Holostraca); in others, as Apus, by a shield-shaped carapace (Monostraca); in others, like Artemia, there is no carapace, and the body is regularly segmented. Sometimes the group is made to include also the Cladocera.

Phyl*lop"o*dous (?), a. (Zoˆl.) Of or pertaining to the Phyllopoda.

Phyl"lo*rhine (?), a. [Phyllo- + Gr. &?;, &?;, the nose.] (Zoˆl.) Of or pertaining to Phyllorhina and other related genera of bats that have a leaflike membrane around the nostrils.

||Phyl`lo*so"ma (?), n. [NL. See Phyllo-, and -some body.] (Zoˆl.) The ||larva of the spiny lobsters (Palinurus and allied genera). Its body ||is remarkably thin, flat, and transparent; the legs are very long. ||Called also glass-crab, and glass- shrimp.

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Phyl"lo*stome (fl"l*stm), n. [Phyllo- + Gr. sto`ma mouth.] (Zoˆl.) Any bat of the genus Phyllostoma, or allied genera, having large membranes around the mouth and nose; a nose-leaf bat.

Phyl*los"to*mid (?), n. A phyllostome.

Phyl`lo*tac"tic (?), a. (Bot.) Of or pertaining to phyllotaxy.

{ Phyl"lo*tax`y (?), Phyl"lo*tax`is (?), } n. [Phyllo- + Gr. ta`xis order.] (Bot.) The order or arrangement of leaves on the stem; the science of the relative position of leaves.

Phyl"lous (?), a. (Bot.) Homologous with a leaf; as, the sepals, petals, stamens, and pistils are phyllous organs.

Phyl`lo*xan"thin (?), n. [Phyllo- + Gr. &?; yellow.] (Bot.) A yellow coloring matter extracted from chlorophyll.

Phyl`lox*e"ra (?), n. [NL., fr. Gr. &?; leaf + &?; dry.] 1. (Zoˆl.) A small hemipterous insect (Phylloxera vastatrix) allied to the aphids. It attacks the roots and leaves of the grapevine, doing great damage, especially in Europe.

It exists in several forms, some of which are winged, other wingless. One form produces galls on the leaves and twigs, another affects the roots, causing galls or swellings, and often killing the vine.

2. The diseased condition of a vine caused by the insect just described.

{ Phy`lo*gen"e*sis (?), Phy*log"e*ny (?), } n. [Gr. &?; tribe + E. genesis, or root of Gr. &?; to be born.] The history of genealogical development; the race history of an animal or vegetable type; the historic exolution of the phylon or tribe, in distinction from ontogeny, or the development of the individual organism, and from biogenesis, or life development generally.