CONIFERALES 315 



Cunninghamia sinensis is pollinated early in April, and fertilized 

 early in July — ^another interval of about 3 months. 



In the Cupressaceae there are also long and comparatively short 

 periods: 



In Actinostrobus pyramidalis the interval between pollination and 

 fertilization is about 3 months — from the middle of July to the 

 middle of October. 



In Tetraclinis articulata pollination extends over an unusually 

 long period, from April 20 to June i. Fertilization follows from 3 to 

 3§ months later. 



In Widdringtonia cupressoides the interval is long, with polUna- 

 tion in January and fertilization 14 or 15 months later — in February 

 or March of the next year. 



In Lihocedrus decurrens, pollinated in California early in April, 

 fertiUzation occurs about 2 months later — the first week in June. 



Juniperus communis, in southern Sweden, is polHnated about the 

 middle of June and fertilization takes place more than a year later — 

 the first week in July. Near Wellesley, Massachusetts, polHnation 

 occurs about May 11, and fertilization about June 20 — also an 

 interval of about 1 2^ months. Juniperus virginiana, with which /. 

 communis is often associated, has a comparatively short interval, 

 with pollination about May i, and fertilization about June 20 of the 

 same year. 



In the Araucariaceae, records are not very complete, with almost 

 no reports from anything except exotic material. 



In Araucaria braziliensis fertilization occurs about April i — 5 or 

 6 months after pollen falls on the cone. In Araucaria cunninghamii 

 pollen is shed (Queensland, Australia) in December. 



In Agathis australis pollination occurs in September and October, 

 with fertilization a year later. 



In the Podocarpaceae, Dr. Johanna Kildahl^^^ found the pollen 

 of Phyllocladus alpina already shed on November i ; Dr. Mary 

 YouNG^"'' found pollen just ready for shedding on November 13. 

 Both studied New Zealand material. 



In the Taxaceae records are scanty: In Taxus baccata pollination, 

 at Zurich, takes place March 1-15. According to Dupler,'^s the 

 interval between pollination and fertilization is only i month, while 



