. Brigham Young University science bulletin. Biology -- Periodicals. Biological Series, Vol. 19, No. 2 Taxonomy of the Genus Chloris (Cramineae) of the limited availability of viable seeds, Jensen was able to examine onh' ten species for this characteristic, all of which had the root hair pro- jecting at an angle of about 60° near one end of the cell. The species examined were: Chloris canterai, C. gayana, C. inflata, C. pilosa, C. pijcnothrix. C. stil)mutica. C. truncata, Eiistaclnjs caribaca, E. distichopluiUa. E. petraca, and E. rettisa. The first seedling leaf in panicoid grasses is relati
. Brigham Young University science bulletin. Biology -- Periodicals. Biological Series, Vol. 19, No. 2 Taxonomy of the Genus Chloris (Cramineae) of the limited availability of viable seeds, Jensen was able to examine onh' ten species for this characteristic, all of which had the root hair pro- jecting at an angle of about 60° near one end of the cell. The species examined were: Chloris canterai, C. gayana, C. inflata, C. pilosa, C. pijcnothrix. C. stil)mutica. C. truncata, Eiistaclnjs caribaca, E. distichopluiUa. E. petraca, and E. rettisa. The first seedling leaf in panicoid grasses is relatively wide and curled; that of festucoids is long and narrow (Stebbins, 1956). The species listed above all had panicoid seedling leaves, ac- cording to Jensen. Relationships of Chloris and Other Genera As with manv genera in the Gramineae, generic delimitations in the Chlorideae may be difficult to assess; and they, of necessity, may be somewhat arbitrar\' and artificial. The com- plex that includes Chloris is no exception. While most of the species have long been included within the genus and most of the characteristics recognized, some species have been placed in adjacent genera in the past, a few more recentK' so. A graphical conspectus of Cliloris and re- lated genera is presented in Fig. 2. The number of taxa commonly accepted in each is indicated by the relative size of the circle. Also given arc those species in ClUoris that resemble the satellite genera, as well as those in the satellite genera that have been included in Chloris. There is little infonnation, aside from spike- let moiphology, that is useful in generic delimi- tation within this group. Chromosome counts are mostly of the same basic number; leaf epi- dermal and anatomical characteristics do not appear uniciue to particular genera; genetic in- fonnation is \irtuall\- nonexistent. Consequently, speculation on relationships, both intergeneric and interspecific, rests heavilv upon infomiation gleaned primaril
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