15.6 Phylum Lycoplhyta: Club Mosses 13 Bothlycopoti m Epuisetum and Equisetum ha

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15.6 Phylum Lycoplhyta: Club Mosses 13 Bothlycopoti m Epuisetum and Equisetum have strobil, roots, and rhizomes What did you learn in this exercise that enables you to distinguish these two plants? Examine the photo at the right. a. Give the genus of this plant b. Label the structure indicated. 14. Some species of Lycopodivwne produce gametophytes that grow beneath the surface of the soil, while oth- ers grow on the soil surface. Basing your answer on what you've learned from other plants in this exer- cise, predict how each respective type of Lycopodiu gametophyte might obtain its nutritional needs (o.3x). 15.7 Phylum Moniliophyta, Subphylum Psllophyta: Whisk Ferns 15 Using a bilogical or scientific dictionary or a reference in your textbook, determine the meaning of the root word psilo, and relate it to the appearance of Psilotum Horsetails 16. Examine the photo on the right. You studied this genus in lab, but this is a different species. This species has two separate stems produced at dif- ferent times in the growing season. The stem on the left is a reproductive branch, while that on the right is strictly vegetative. Based on the charac- teristics obvious in this photo, identify the plant, give its scientific name, and then identify the labeled structures. Scientific name (0.75x) 292 ExERCISE 1S

Explanation / Answer

Answer:

13)

a) Give the genus of this plant: Lycopodium (a genus of clubmosses)

b) Label the structure indicated: Strobilus

14) Predict how each respective type of Lycopodium gametophyte might obtain its nutritional needs

15) Meaning of the word Psilo:In Greek, 'psilo' means bare. Psilotum is a genus of fern-like vascular plants that doesnot contain true leaves or roots.

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