FIGURE 3 in Criscianthus, a new genus of Eupatorieae (Asteraceae) with a key to members of the tribe in Africa

FIGURE 3. Venation of Criscianthus and Stomatanthes. A, B. At light microscope observation. A. Criscianthus zambiensis, the dark staining area in the marginal tooth probably corresponds to the ending of a secretory duct. B. Stomatanthes helenae, note the conspicuous areolation. C, D. At stereomicroscope observation. C. Criscianthus zambiensis. D. Stomatanthes meyeri. A, from Richards 18908 (US); B, from Duvigneaud 4446 (BRLU); C, from Chapama et al. 705 (K); D, from Friis et al. 1518 (K). Photos: A and B by Mariana A. Grossi, C and D by Jimi Nakajima.