Basil of Caesarea

How then, they say, can Scripture describe all the plants of the earth as seed-bearing, when the reed, couch-grass, mint, crocus, garlic, and the flowering rush and countless other species, produce no seed? To this we reply that many vegetables have their seminal virtue in the lower part and in the roots. The reed, for example, after its annual growth sends forth a protuberance from its roots, which takes the place of seed for future trees. Numbers of other vegetables are the same and all over the earth reproduce by the roots. …

The Hexaemeron, Homily 5: The Germination of the Earth ↗

Ambrose of Milan

The Word of God permeates every creature in the constitution of the world. Hence, as God had ordained, all kinds of living creatures were quickly produced from the earth. In compliance with a fixed law they all succeed each other from age to age according to their aspect and kind. The lion generates a lion; the tiger, a tiger; the ox, an ox; the swan, a swan; and the eagle, an eagle. What was once enjoined became in nature a habit for all time. Hence the earth has not ceased to offer the homage of its service. …

The Six Days of Creation ↗

Bede

And God created great sea creatures and every living creature that moves, which the waters brought forth in their kinds, and every winged bird according to its kind. Therefore, no kind was excluded, where all living creatures were created with the great sea creatures, which the waters brought forth in various kinds, that is, reptiles, swimming creatures, and flying creatures; but also those that are fixed to rocks and cling with no suitable movement, as are the many kinds of shells. …

Commentary on Genesis (Hexaemeron) ↗