There were 7 illustrations found for H.M. Longhi-Wagner
Danthonia secundiflora J. PreslKew Bull., vol. 57 : p. 973, fig. 1 (2002) [H.M. Longhi-Wagner & F. Boyen]
Homolepis aturensis (Kunth) ChaseKew Bull., vol. 57 : p. 974, fig. 2 (2002) [H.M. Longhi-Wagner & F. Boyen]
Urochloa trichopus (Hochst.) StapfKew Bull., vol. 57 : p. 976, fig. 3 (2002) [H.M. Longhi-Wagner & F. Boyen]
Ctenium brevispicatum J.G.Sm.Kew Bull., vol. 59 : p. 307, fig. 1A-C (2004) [H.M. Longhi-Wagner & F. Boyen]
Ctenium chapadense (Trin.) DöllKew Bull., vol. 59 : p. 307, fig. 1D-F (2004) [H.M. Longhi-Wagner & F. Boyen]
Ctenium concissum SwallenKew Bull., vol. 59 : p. 308, fig. 2A-C (2004) [H.M. Longhi-Wagner & F. Boyen]
Ctenium polystachyum BalansaKew Bull., vol. 59 : p. 308, fig. 2D-F (2004) [H.M. Longhi-Wagner & F. Boyen]