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Phylum Coniferophyta (or Pinophyta) -- conifers Coniferophyta comprise a very large phylum of great economic importance. Pinus (pine) is surely its most famous and economically beneficial genus. Numerous genera of conifers can be found in central Texas both growing natively and horticulturally. Of particular note is Juniperus (cedar or red cedar) which causes large-scale allergic reactions among people. (Pollen and seed are produced on different individuals and it is pollen trees that cause human allergies.) Conifers are heterosporous and, in addition, produce highly specialized, complex reproductive and dispersal structures called seeds. Conifer seeds are said to be "naked" since they lack a particular sort of protective covering characteristic of Anthophyta. Coniferophyta are therefore said to be "gymnospermous." Genus Juniperus

Juniperus "berry" The so-called "berry" of Juniperus is actually a fleshy seed cone (megasporangiate strobilus).	Juniperus "berry"

Juniperus pollen cones ( = microsporangiate strobili)

Massive winter release of Juniperus pollen in Texas causes widespread allergic reactions in humans (and possibly other animals).

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