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Lloret et al. test and support the hypothesis that the resprouting habit so frequently found among Mediterranean plants did not specifically evolve as a response to fire. Putting a flame-thrower to good use, Lloret et al. provide one of the first well-replicated, balanced designs in resprouting ecology field studies. (see p. 1655)
Genetic adaptation of haploid bryophyte
Sastad et al.'s experimental work on Sphagnum angustifolium demonstrates genetic specialization to habitat within a local population of this haploid organism. Their data stand in contrast to the view that the broad physiological optima of mosses preclude genetic response. (see p. 1687)
Ontogeny in the inscrutable lotus
Kreunen and Osborn provide the first comprehensive analysis of pollen and anther development in Nelumbo lutea, ontogenetic information that is much needed for understanding the systematic position of Nelumbo and the Nelumbonales. Their data confirm an earlier hypothesis that the late initiation of aperture development in Nelumbo is unique among the angiosperms studied thus far. (see p. 1662)
Whole-plant flower size/number trade-offs
Using two varieties of Impatiens hypophylla, Sato and Yahara examine sex allocation in the context of trade-offs between allocation within single flowers and size/number trade-offs involving all the flowers of an individual. The authors show that the outcrossing variety has larger but fewer flowers compared with the inbreeding variety and that pollinators preferentially visit the larger flowered variety. (see p. 1699)
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