Peterson, Paul M., Jesus Valdes-Reyna and Yolanda Herrera Arrieta
Figure A-E. Muhlenbergia repens (Poaceae). Collection: J.R. Reeder 4045, Mexico, A. Habit, B. Ligule, C. Glumes, D. Floret, E. Lodicules, stamens and pistil. Appears in publication J. Bot. Res. Inst. Texas as A-D in Figure 20. - 1996.
Figure F-I. Muhlenbergia villiflora (Poaceae). Collection: Peterson, C.R. Annable & J. Valdes-Reyna 10982 US, Mexico, San Luis Potosi; F. Ligule, G. Glumes, H. Lemma, I. Lodicules, stamens and pistil. Appears in publication J. Bot. Res. Inst. Texas as F-I in Figure 16. - 1996.
Figure J-M. Muhlenbergia richardsonis (Poaceae). Collection: Reid Moran 28016, J. Ligule, K. Glumes, L. Floret, M. Lodicules, stamens and pistil. Figures in the drawing are not known to be published. - 1996.