FIGURE 4. Hydrangea albostellata. A in First record of the critically endangered Hydrangea steyermarkii Standl. (Hydrangeaceae) in Mexico, and description of a new widespread Hydrangea species of Mesoamerica

FIGURE 4. Hydrangea albostellata. A. Habitus of branch with inflorescences in different developmental stages (inflorescence buds, inflorescence with flower buds and infructescence). B. Enlarged marginal flower with two pistils with fertile stigmas. C. Functionally male flower with 8 fertile stamens and 2 reduced pistils. D. Maturing capsule, fertile stigmas still visible, seeds are released through the opening between the 2 pistils. E. Detail of abaxial leaf surface with stellate indument. Drawn by Ramiro Cruz Durán from the holotype M.S. Samain et al. 2012-023 (MEXU; A, B), and from the specimens M.S. Samain et al. 2012-021 (MEXU; A, D, E) and M.S. Samain & E. Martínez S. 2012-088 (MEXU; C).