Crossword clues for roccella
The Collaborative International Dictionary
Orcin \Or"cin\, n. [Etymology uncertain: cf. F. orcine.] (Chem.) A colorless crystalline substance, C6H3.CH3.(OH)2, which is obtained from certain lichens ( Roccella, Lecanora, etc.), also from extract of aloes, and artificially from certain derivatives of toluene. It changes readily into orcein.
Wiktionary
n. Any of a group of lichens of genus ''Roccella'', especially (taxlink Rocella tinctoria species noshow=1) from which litmus is extracted.
WordNet
n. a source of the dye archil and of litmus [syn: Roccella tinctoria]
Wikipedia
Roccella may refer to:
- Roccella Valdemone, a municipality in Sicily, Italy.
- Roccella Ionica (or Roccella Jonica), a municipality in Calabria, Italy.
- The Roccella genus of lichens, known for the species Roccella tinctoria among others.
Roccella is a lichenized genus of fungi in the family Roccellaceae.
Usage examples of "roccella".
Lenormant is entirely wrong, and that the Roman city was not at Squillace, where there are no remains of earlier than mediaeval times, but at Roccella del Vescovo, five or six miles from Squillace in a north-easterly direction, where there are such remains as can only have belonged to a Roman provincial city of the first rank.
This description by Cassiodorus exactly suits Roccella, but does not suit Squillace, which is at the top of a conical hill, and is reached only by a very toilsome ascent.
While no remains of a pre-mediaeval time have been discovered at Squillace, there is still standing at Roccella the shell of a splendid basilica, of which Mr.
Lenormant, who identified the ruins at Roccella with those of Castra Hannibalis, the seaport of Scylacium.
Roccella tinctoria is a small, dry, perennial lichen, in appearance a bunch of wavy, tapering branched, drab-coloured stems from 2 to 6 inches high, springing from a narrow base.