Bava Batra 81A

כסיתא. איכא דאמרי: ערונים, ערמונים, אלמוגים. ערונים ⁠– ערי, ערמונים ⁠– דולבי, אלמוגים ⁠– כסיתא.

refers to coral trees [kasita]. There are those who say that the other 3 are as follows: Aronim, armonim, and almugim. Aronim refers to laurel trees [arei], armonim to plane trees [dulevei], and almugim to coral trees [kasita].

מתני׳ הקונה שני אילנות בתוך שדה חבירו ⁠– הרי זה לא קנה קרקע. רבי מאיר אומר: קנה קרקע. הגדילו ⁠– לא ישפה. והעולה מן הגזע ⁠– שלו; ומן השרשים ⁠– של בעל הקרקע. ואם מתו ⁠– אין לו קרקע.

Mishnah: With regard to one who buys two trees in the field of another, this one has not acquired any ground, but only the trees. R' Meir says: He has acquired the ground under them. The Mishnah states a halakha in accordance with the opinion of the first tanna: If the trees grew, the owner of the field may not cut down their branches, despite the fact that their shade damages his field. And that which grows out of the trunk is his, i.e., it belongs to the owner of the tree, but that which grows out of the roots belongs to the owner of the ground. And if the trees died, their owner has no rights to the ground where the trees had stood.

קנה שלשה ⁠– קנה קרקע. הגדילו ⁠– ישפה. והעולה מן הגזע ומן השרשין ⁠– שלו. ואם מתו ⁠– יש לו קרקע.

If one bought 3 trees, he has acquired the ground along with them. If they grew, the owner of the field may cut down their branches, as he sold a specific piece of land along with the trees, not his entire field. And that which grows out of the trunk and out of the roots is his, i.e., it belongs to the owner of the trees. And if the trees died, the owner of the trees still has possession of the ground, as it was sold along with the trees.