Niebla and Vermilacinia (Ramalinaceae) from California and Baja California.  
Spjut, R.W., 1996. ISSN 0833-1475, 208 pp.  
Sida, Botanical Miscellany: 14. Botanical Research Institute of Texas, Inc.

Bahía de Santa María
Spjut & Marin 11557
May 1991

Vizcaíno Peninsula, Mesa 
above Arroyo San Andrés, 
Spjut 9567, May 1986

Vizcaíno Peninsula, Mesa 
above Arroyo San Andrés,
Spjut 9584, May 1986

Morro Santo Domingo, type locality, Spjut 9784A
May 1986

Morro Santo Domingo,
type locality, Spjut 9784D
May 1986

Mesa Camacho,
Spjut 11306, Apr 1990

Mesa Camacho,
Spjut & Marin 13051
Apr 1994

Mesa Camacho,
Spjut & Marin 13095,
Apr 1994

Vizcaíno Peninsula, Mesa 
above Arroyo San Andrés,
Spjut & Marin 10336, Apr 1990

Isla San Martín,
Beauchamp s.n. (COLO)

Geographical occurrences
 

Illustration of TLC Data for Niebla spp.

     Niebla lobulata was described based on a specimen from Morro Santo Domingo, occurring with N. undulata and N. marinii.  It is distinguished by having sekikaic acid and by the flattened contorted branches with broad lobes or lacerated margins.  Niebla undulata is sometimes similar, except for the presence of divaricatic acid. 

     Unlike Niebla undulata, N. lobulata is variably in having both lacerated and lobulate margins, and it is also variable in the thickness of the cortex, and in the prominence of cortical ridges.  Similar specimens from the Channel Islands are referred to N. cornea by the blade-like branches with a thicker cortex and solid medulla.  Others from Isla Guadalupe, which have a relatively thick cortex and solid medulla, are considered N. lobulata by the flabellate lacerated branches.

     Niebla lobulata is perhaps most common on the Vizcaíno Peninsula where small samples were collected for antitumor screening.