1. Sporangia are borne in the axil or on the adaxial surface of the sporophyll. 2. The sepals have bristles on the adaxial surface. 3. Dark green on the adaxial side, while abaxially they tend to be much paler. 4. At the same time, condensation occurs in thin film on the adaxial face of the spore. 5. Pupation takes place in a cocoon, usually made on the adaxial leaf surface of adjacent leaves. 6. There are also four interradial tentacles that are small and solid . these have adaxial nematocyst clusters. 7. The xylem typically lies on the adaxial side of the vascular bundle and the phloem typically lies on the abaxial side. 8. They mine the adaxial ( toward the center ) epidermis of the leaf, forming a narrow, long serpentine mine. 9. Lycophytes, in contrast, bear their sporangia on the adaxial surface ( the upper side ) of leaves or laterally on stems. 10. The adaxial and abaxial surface of the leaf is covered with yellowish or purplish spines that grow from purple wart-like structures.
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