There were 14 illustrations found for H.A. Wahl

Costus sp.
H.G.A. Engler, Pflanzenr., vol. 46 [Heft 20], (Zingiberaceae): p. 426, fig. 50 J,K (1904)

Costus sp.
H. Ruiz, J. Pavón, Draw. Roy. Bot. Exped. Viceroy. Peru: t. 1704 [] (1777) [J.G. Rivera]

Costus sp.
Watercolor Drawings and Pencil Sketches of Nigerian Plants 1909-1912, Talbot collection: ()

0
H.M. Johnston, O. Stapf, , vol. 2 : p. 547, fig. 224 (1906)

233882
Chenopodium foggii Wahl
Bartonia, vol. 27 : p. 21, fig. 1 (1954)

234016
Chenopodium atrovirens [Chenopodium incognitum Wahl]
Bartonia, vol. 27 : p. 21, fig. 2 (1954)

-1
20__0_521842 Chenopodium album test 18
Bartonia, vol. 27 : p. 37, fig. 3 (1954)

233493
Chenopodium album L.
Bartonia, vol. 27 : p. 37, fig. 4 (1954)

234115
Chenopodium album [Chenopodium missouriense Aellen]
Bartonia, vol. 27 : p. 37, fig. 5,6 (1954)

234390
Chenopodium standleyanum Aellen
Bartonia, vol. 27 : p. 43, fig. 10 (1954)

233902
Chenopodium simplex [Chenopodium gigantospermum Aellen]
Bartonia, vol. 27 : p. 43, fig. 11 (1954)

233997
Chenopodium hybridum L.
Bartonia, vol. 27 : p. 43, fig. 12 (1954)

234367
Chenopodium serotinum L.
Bartonia, vol. 27 : p. 43, fig. 13 (1954)

233886
Chenopodium fremontii S. Watson
Bartonia, vol. 27 : p. 43, fig. 14 (1954)

233741
Chenopodium berlandieri [Chenopodium bushianum Aellen]
Bartonia, vol. 27 : p. 43, fig. 15 (1954)

899246
Chenopodium strictum (Aellen) Wahl var. glaucophyllum
Bartonia, vol. 27 : p. 43, fig. 7 (1954)

234075
Chenopodium macrocalycium Aellen
Bartonia, vol. 27 : p. 43, fig. 8 (1954)

-1
Chenopodium berlandieri (Murr) Murr ex Graebn. var. zschackei
Bartonia, vol. 27 : p. 43, fig. 9 (1954)