Aulonemia Goudot, 1846

Ruiz-Sanchez, Eduardo, Clark, Lynn G., Londoño, Ximena, Mejía-Saulés, Teresa & Rodríguez, Gilberto Cortés, 2015, Morphological keys to the genera and species of bamboos (Poaceae: Bambusoideae) of Mexico, Phytotaxa 236 (1), pp. 1-24 : 12

Aulonemia Goudot

Rhizomes pachymorph; culms hollow with thin walls, 1–4 m tall, 0.5–1 cm in diameter, erect to scandent; culm leaf sheaths well developed, persistent and long fimbriate; culm leaf blades pseudopetiolate, persistent and similar to the foliage leaf blades; branching intravaginal; node with one bud developing into 1 main branch subequal to the main culm; foliage leaf blades ovate, with long pseudopetioles and long fimbriae to 3 cm; synflorescences paniculate; spikelets long pedicellate; glumes and lemma glabrous; fruit a basic caryopsis.

1 species in Mexico: A. laxa . Endemic to Mexico; Chiapas, Guerrero and Veracruz; 1600–2700 m ( Fig. 2C–D ) .

Figures

FIGURE 2. A–B. Arthrostylidium excelsum. A. Foliage complement. B. Branch complement. C–D. Aulonemia laxa. C. Culm showing the leaves in the apical portion. D. Detail of the ligular area, showing fimbriae.E–F.Merostachys sp.. E. Branches. F. Foliage complement, abaxial view showing the narrow green marginal stripe. A–D photos by E. Ruiz-Sanchez, E–F photos by M. T. Mejía-Saulés.