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PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES 
Series 4, Volume 65, 28 Sept. 2018, No. 2 
Figure 15. Louteridium mexicanum. A. Shoot with inflorescence in flower. B. Leaf. C. Flower with pedicel and enlarge¬ 
ments showing glands on external surface of corolla and eglandular trichomes on pedicel. D. Posterior calyx lobe. E. Lat¬ 
eral calyx lobe (adaxial surface with enlargement showing glandular punctations and cystoliths). F. Corolla dissected to 
show insertion of stamens. G. Anther. H. Distal portion of style and stigma. I. Capsule. J. Seed. A-H from Breedlove & 
Daniel 70879cv, I from Breedlove 24177, J from Hernandez G. 1054. Drawn by Erin Hunter (inverted from scratchboard). 
Linden’s indication of Chiapas on the collection labels, Zacuapam (shown in Fig. 11 with a ques¬ 
tion mark) is not included in the calculation of the EOO for the species. 
Based on living flowers of Breedlove & Daniel 70879cv, the coloration of corollas of this 
species can be more fully described as follows: the narrow proximal portion of the tube (covered 
by the calyx) is green; the throat is green with maroon veins and tinged with maroon between the 
major veins; the lips (with recoiled lobes) are mostly maroon. 
