Seedless Vascular Plants

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1. A complex vascular tissue through which most of the water and minerals of a plant are conducted.

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2. A tube formed after germination of the pollen grain; carries the male gametes into the ovule.

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3. The food conducting tissue of vascular plants.

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4. A small leaf with one vein and one leaf trace not associated with either a leaf gap or a leaf trace gap.

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5. Outer protective tissue that replaces epidermis when it is destroyed during secondary growth; includes cork, cork cambium, and phelloderm.

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6. A cylindrical sheath of meristematic cells, the division of which produces secondary phloem and secondary xylem.

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7. The sporangia commonly occurs in clusters on the underside of leaves.

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8. In heterosporous plants, a spore that develops into a male gametophyte.

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9. Having only one kind of spore.

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10. A generally large leaf with several to many veins; its leaf trace is/are associated with a leaf gap and a leaf trace gap.

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11. The simplest type of stele, consisting of a solid column of vascular tissue.

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12. In angiosperms, the transfer of pollen from an anther to a stigma. In gymnosperms, the transfer of pollen from a pollen-producing cone directly to an ovule.

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13. The leaf of a fern; any large, divided leaf.

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14. A modified leaf or leaflike organ that bears sporangia.

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15. In plants, growth originating in the apical meristems of shoots and roots.

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16. The ground tissue occupying the center of the stem or root within the vascular cylinder; usually consists of parenchyma.

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17. Stalk of a leaf.

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18. Region of parenchyma tissue in the primary vascular cylinder above the point of departure of the leaf trace or traces in ferns.

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19. The lateral meristem that forms the periderm, producing cork toward the surface of the plant and phelloderm toward the inside; common in stems and roots.

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20. A structure formed by the maturation of the ovule of seed plants following fertilization.

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21. An elongated, thick-walled conducting and supporting cell of xylem. It has tapering ends and pitted walls without perforations, as contrasted with a vessel element.

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22. In ferns, a row of specialized cells in a sporangium; in gill fungi, the remnant of the inner veil forming a ring on the stalk.

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23. Main axis of a spike; the axis of a fern leaf from with the pinnae arise; in compound leaves, the extension of the petiole corresponding to the midrib of an entire leaf.

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24. Phyla that includes the ferns.

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25. A microspore containing a mature or immature microgametophyte.

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26. A minute outgrowth or appendage at the base of the leaves of grasses and those of certain lycophytes.

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27. A stele in which the primary vascular tissues are arranged in discrete strands around a pith.

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28. Region of parenchyma tissue in the primary vascular cylinder above the point of departure of the leaf trace or traces in seed plants.

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29. The above-ground portions, such as the stem and leaves, of a vascular plant.

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30. Underground stem, the belowground portion of the plant axis, bearing rhizoids for water absorption.

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31. One of the cells composing a vessel.

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32. In homosporous vascular plants, such as ferns, the more or less independent, photosynthetic gametophyte.

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33. A leaf or leaflike stucture bearing a megasporangium.

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34. A type of stele containing a hollow cylinder of vascular tissue surrounding a pith.

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35. A reproductive structure consisting of a number of modified leaves or ovule-bearing scales grouped terminally on a stem; a cone.

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36. The outer covering tissue of the plant; the epidermis or the periderm.

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37. Young coiled leaves.

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38. The central cylinder, inside the cortex, of roots and stems of vascular plants.

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39. Phyla that includes the club mosses.

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40. All tissues other than the epidermis and the vascular tissues; also called fundamental tissue system.

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41. A primary division, or leaflet, of a compound leaf or frond; may be divided into pinnules.

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42. The part of the plant body arising from the apical meristems and their derivative meristematic tissues.

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43. A leaflike organ bearing one or more microsporangia.

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44. A sporangium that arises from several initial cells and, before maturation, forms a wall of more than one layer of cells.

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45. Nutritive element in the sporangium, particularly an anther.

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46. Membranous growth of the epiderm of a fern leaf that covers sori.

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47. An elongated, spindle-shaped, sterile cell in the sporangium of a liverwort sporophyte.

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48. The general term for a water-conducting cell in vascular plants; tracheids and vessel elements.

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49. A branch bearing one or more sporangia.

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50. A structure at the base of the embryo in many vascular plants. In some plants, it pushes the embryo into nutrient-rich tissue of the female gametophyte.

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51. Type of life history associated with seedless vascular plants.

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52. As in ferns, the coiled arrangement of leaves and leaflets in the bud; such an arrangement uncoils gradually as the leaf develops further.

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53. Cells derived from the apical meristems and primary meristematic tissues of root and shoot; results in an increase in length.

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54. An organism with branched axis and multiple sporangia but with water-conducting cells similar to the hydroids of modern mosses rather than to the tracheary elements of vascular plants.

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55. The sporophylls occur in compact aggregates called cones or strobili.

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A complex vascular tissue through which most of the water and minerals...
A tube formed after germination of the pollen grain; carries the male...
The food conducting tissue of vascular plants.
A small leaf with one vein and one leaf trace not associated with...
Outer protective tissue that replaces epidermis when it is destroyed...
A cylindrical sheath of meristematic cells, the division of which...
The sporangia commonly occurs in clusters on the underside of leaves.
In heterosporous plants, a spore that develops into a male...
Having only one kind of spore.
A generally large leaf with several to many veins; its leaf trace...
The simplest type of stele, consisting of a solid column of vascular...
In angiosperms, the transfer of pollen from an anther to a stigma. In...
The leaf of a fern; any large, divided leaf.
A modified leaf or leaflike organ that bears sporangia.
In plants, growth originating in the apical meristems of shoots and...
The ground tissue occupying the center of the stem or root within the...
Stalk of a leaf.
Region of parenchyma tissue in the primary vascular cylinder above the...
The lateral meristem that forms the periderm, producing cork toward...
A structure formed by the maturation of the ovule of seed plants...
An elongated, thick-walled conducting and supporting cell of xylem. It...
In ferns, a row of specialized cells in a sporangium; in gill fungi,...
Main axis of a spike; the axis of a fern leaf from with the pinnae...
Phyla that includes the ferns.
A microspore containing a mature or immature microgametophyte.
A minute outgrowth or appendage at the base of the leaves of grasses...
A stele in which the primary vascular tissues are arranged in discrete...
Region of parenchyma tissue in the primary vascular cylinder above the...
The above-ground portions, such as the stem and leaves, of a vascular...
Underground stem, the belowground portion of the plant axis, bearing...
One of the cells composing a vessel.
In homosporous vascular plants, such as ferns, the more or less...
A leaf or leaflike stucture bearing a megasporangium.
A type of stele containing a hollow cylinder of vascular tissue...
A reproductive structure consisting of a number of modified leaves or...
The outer covering tissue of the plant; the epidermis or the periderm.
Young coiled leaves.
The central cylinder, inside the cortex, of roots and stems of...
Phyla that includes the club mosses.
All tissues other than the epidermis and the vascular tissues; also...
A primary division, or leaflet, of a compound leaf or frond; may be...
The part of the plant body arising from the apical meristems and their...
A leaflike organ bearing one or more microsporangia.
A sporangium that arises from several initial cells and, before...
Nutritive element in the sporangium, particularly an anther.
Membranous growth of the epiderm of a fern leaf that covers sori.
An elongated, spindle-shaped, sterile cell in the sporangium of a...
The general term for a water-conducting cell in vascular plants;...
A branch bearing one or more sporangia.
A structure at the base of the embryo in many vascular plants. In some...
Type of life history associated with seedless vascular plants.
As in ferns, the coiled arrangement of leaves and leaflets in the bud;...
Cells derived from the apical meristems and primary meristematic...
An organism with branched axis and multiple sporangia but with...
The sporophylls occur in compact aggregates called cones or strobili.
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