Genus: SIGRIDEA  Family: ROCCELLACEAE Source: USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 24 June 2009). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Genera of ROCCELLACEAE Select a genus and click on Ok 1) Dendrographa 2) Roccella 3) Dirina 4) Mazosia 5) Enterographa 6) Ocellularia 7) Schismatomma 8) Thelotrema 9) Plectocarpon 10) Reinkella 11) Roccellina 12) Schizopelte 13) Combea 14) Sigridea 15) Lecanactis 16) Platygrapha

TAXON	DISTRIB.	IMAGES
Sigridea californica (Tuck.) Tehler Views: 185.469 Lichenous - Synonyms: = Dirina californica Tuck. = Dirina hassei Zahlbr. = Lecanactis californica Tuck. = Lecanactis zahlbruckneri Herre = Platygrapha californica (Tuck.) Nyl. = Schismatomma californicum (Tuck.) Zahlbr.

More genera: Silene Silphium Silybum Simarouba Simmondsia Simsia Sinapis Sinningia Sinocalamus Sinosenecio Siphoneugena Siphonoglossa