更多orchil例句

1. Roccella, rok-sel′a, n. a genus of parmeliaceous lichens, yielding dyers' archil or orchil.
2. Litmus is also obtained from the same lichens as yield orchil.
3. Cochineal is turned by the potassa to a violet-red, orchil to a violet-blue, and alkanet to a decided blue.
4. The acid turns logwood violet to a fine red, and equally reddens orchil violet.
5. Much orchil was formerly gathered, and there is good pasturage for the numerous herds of cattle.