The phloem of pteridophytes does not possess ____ cells.

Explanation

**Step-by-Step Solution:**

1. **Understanding Phloem**: Phloem is a type of vascular tissue in plants responsible for the transport of nutrients, particularly sugars produced through photosynthesis.

2. **Identifying Pteridophytes**: Pteridophytes are a group of vascular plants that reproduce via spores and do not produce seeds. Examples include ferns and horsetails.

3. **Components of Phloem**: In general, phloem consists of several types of cells, including sieve tubes, companion cells, phloem fibers, and parenchyma cells.

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