A Synopsis of Plant Phyla 13 



Family 11. Entomophthoraceae. Mostly parasites in the bodies 

 of insects, less commonly in plants, or saprophytes. Eiitoiiioph- 

 thora. {Pi. I, i, 134.) 



Class 8. BRYOPSIDOIDEAE. Plants globular to stipitate, 

 or dendroid, septate or continuous. 



Order Valoniales. Globular, mostly terrestrial coenocytes, to 

 compound septate marine plants. 



Family 12. Botrydiaceae. Minute globular or ovoid, mostly 

 terrestrial plants chlorophyll-bearing. Botrydiiim, Protosiphon. 

 (Pf. I, 2, 123.) 



Family 13. Chytridiaceae. Minute globular or ovoid colorless 

 plants, mostly epiphytic. Rhiddiuni, Chytridinm. (Pf. I, i, 64.) 



Family 14. Valoniaceae. Plants filamentous and non-septate 

 when young, basally attached by rhizoids, usually becoming sep- 

 tate and branched, and often compound when mature, the seg- 

 ments coenocytic. Valonia, Struvea, Halicystis. (Pf. I, 2, 145.) 



Order Dasycladales. Non-septate, regularly branched marine 

 plants. 



Family 15. Derbesiaceae. Plants filamentous, sparingly dichot- 

 omous, erect, with basal rhizoids, zoospores multiciliated. Der- 

 besia. (Pf. I, 2, 129.) 



Family 16. Bryopsidaceae. Plants pinnately branched, erect, 

 with basal rhizoids ; gametes biciliated. Bryopsis. (Pf. I, 2, 127.) 



Family 17. Caulerpaceae. Plants large, branched, creeping, 

 with lateral rhizoids and bearing erect, usually pinnate "leaves." 

 Caulerpa. (Pf. I, 2, 134.) 



Family 18. Dasycladaceae. Plants erect, regularly branched in 

 whorls, with basal rhizoids. Acetabnlaria. (Pf. I, 2, 152.) 



Phylum V. PHAEOPHYOEAE. The Brown Algae. 



Plants truly cellular, from filamentous and few-celled to mas- 

 sive organisms differentiated into roots, stems, and leaves ; brown- 

 green, the cells containing phycoxanthin in addition to chloro- 

 phyll ; propagation by zoospores and tetraspores ; generation by 

 isogametes and heterogametes. Typically marine plants. 



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