Botanytest3terms

Leaflike structure that encloses one or more ovules

Cavity within a sporangium or ovary in which ovules occur

The stalk of an individual flower in an infolrescence

The stalk of a solitary flower or of an inflorescence

sepals and petals together

Collective name of petals

Enlarged end of flower stalk that sepals, petals, stamens, and carpels attach

Collective name of sepals

Has all 4 floral parts (sepal, petal, stamen, carpel)

Missing one of the four floral parts

One flower has both stamens and pistils (bisexual)

Flower that is lacking either stamens or pistils (unisexual)

Placentae arrange around central column of tissue, equal amount of locules and carpels

Placentae borne upon the ovary wall, ovary not divided into locules

Placentae borne on a central collumn NOT connected by partitions with the ovary wall

Placentae at the very base of unilocular ovary (long. section picture)

Root-like hairs eminating from the base of the prothallus (Pteridophyta)

Thick walled zygote of Spirogyra

Horizontal stem found in Lycopodiophyta

Unspecialized body (no stems, roots, leaves) of bryophytes

(from archegonium) protects developing capsule in Bryophyta

"ring of teeth" that distributes spores in response to moisture changes (Bryophyta)

One type of spore produced by sporophyte. Can produce bisexual gametophytes (2 gametangia on single gametophyte)

• Two types of spores produced by DIFFERENT sporangia. All seed plants, some ferns/lycophytes
• (megaspores/microspores)

Diploid tissue containing micro/megasporocytes (micro/megaspore mother cells). Seed plants

The two flagella characteristic of heterokonts

Walls of diatoms, made from silica

Intercellular material of kelp (Lamnaria)

Pigment of rhodophyta

storage material of rhodophyta