Key to Schismus

View taxon page for Schismus

(For a list of species in Schismus, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Lower 

lemma 

In Poaceae, the lower, generally larger of two sheathing bracts subtending a flower, generally ensheathing the palea (in a sterile lemma, the associated flower and sometimes palea are rudimentary or absent); with the palea and flower, comprising the floret.

generally > 2.5 mm, teeth narrowly triangular; 

palea 

1. In Asteraceae, a scale-like bract that subtends an individual flower on the receptacle (equal to 'chaff scale' in TJM), absent in some genera, restricted to a ring separating ray and disk flowers in most tarweed species. 2. In Poaceae, the distal, generally smaller of two sheathing bracts subtending a flower, generally two-veined and -keeled and ensheathed by the lemma; with the lemma and flower, comprising the floret.

of lowest floret 

acute 

Having a short-tapered, sharp tip, the sides convex or straight and converging at less than a right angle.

, < lemma ..... S. arabicus

1' Lower lemma generally < 2.5 mm, teeth 

obtuse 

Having a short-tapered, blunt tip or base, the sides convex or straight and converging at more than a right angle.

to widely triangular; palea of lowest floret obtuse, > lemma ..... S. barbatus

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