274 Anatomie. — Biologie. — Morphologie etc. 



isolierter Typus. Im Blattbaue findet man Anklänge an Bulhine annua. 



Der 6. Subtribus, Heroneminae, wurde auch von Schulze 

 nicht näher untersucht. 



Der 7. Subtribus, Dianellinae, umfasst Stypandra, Eccremis 

 und Dianella. Dian. Hookeri wurde untersucht und weist vielfach 

 auf typische Merkmale von Phortnium tenax hin. In beiden Fällen 

 können zwar die gemeinsamen Merkmale durch Xerophilie teil- 

 weise erklärt werden; gleichwohl finden sich auch Leitbundel vor. 



B. Hemerocallideae : Hemerocallis hat im Blattbaue stärkere 

 Annäherung an Phormium, deren Organisation allerdings durch 

 xerophile Lebensweise von diesem Typus abweicht, aber als Anpas- 

 sung durch Xerophilie leicht verständlich wird. Mit Hemerocallis 

 ist (im Gegensatze zur Ansicht Schulze's)^os/fa nicht so innig 

 verbunden. 



Die Tafeln bringen Querschnitte durch Wurzel, Rhizom, Schaft 

 und Blatt der untersuchten Arten. Matouschek (Wien). 



Breuster, A. A., Observations on the Pollination oi Dar- 

 winia fascicularis Rudge (N. O. Myrtaceae). (Proc. Linn. Soc. New 

 South Wales. XL. N« 160. p. 753—758. Feb. 1916.) 



This paper is intended to add some further notes and observa- 

 tions to those given by E. Ha Irland who dealt with the life- 

 history and general structure of the plant (New South Wales Lin- 

 nean Society. Vol. IX. p. 67). Hairland stated that 95% of the 

 flowers never open but the author has observed that nearly every 

 flower opens in its early stage but closes for the later and longer 

 State of its existence. The stamens are protandrous, ripening be- 

 fore the style begins to elongate and just before the flowers open. 

 The anthers tend forward towards the centre of the tube. Imme- 

 diately below the Stigma there is a ring of stiff hairlike glands 

 which extend accross the flower so as to reach the anthers and just 

 before the flower opens the anthers give out a viscous mass in which 

 the pollen grains are embedded, this adheres to the substigmatic 

 tuft of hairs and is carried up by the elongated style. 



There is a general enlargement of the stigmatic surface with 

 the developement of elongate, inverted, flask shaped hairs which 

 contain a red fluid. Further advantage is given to the plant by a 

 marked initial zygomorphy of the inflorescence this is only tempo- 

 rary, at a later stage morphological actinomorphy is restored. The 

 flowers in an inflorescence do not all open at once some may be 

 mature closed flowers while others are still in bud. 



Gross pollination is finally very simply afifected by honey eaters — 

 two species of these birds have been observed at work. The pollen 

 masses held by the substigmatic hairs and carried up by the elon- 

 gate style are carried off by the bird as its head brushes the flo- 

 wers. At the same time pollen gets placed on the Stigmas of ma- 

 ture flowers. Seif pollination never seems to occur, there is no 

 sign of the style being bent in order to bring the Stigma in con- 

 tact with the hairs. M. N. Owen (Kew). 



Buder, J., Zur Frage des Generationswechsels im Pflan- 

 zenreiche. (Ber. Deutsch, bot. Ges. XXXIV. p. 559-576. 1916.) 

 Nach Rückblick auf den von A. v. Chamisso gegebenen 

 Begriff „Generationswechsel", auf die wichtigen Arbeiten Hof- 



