. Botany. Botany -- California. 25/- iiJ. faalaris. Glumes boat-sliaped. TltlCK poll » Callus not manifest; floret sessile within the glumes. +- Spikelots of two kinds, in pairs or threes 13. ^gopogon. One spikelet in a cluster perfect, the others staminate or neuter. _ _, -^ +- Spikelets alike and perfect. 1' fr?w ^"o^"f-, Spikelets in small umbellate clusters. 16. Sporobolus. in usually open panicles. Seed free from pericarp (utricle) ⦠* Callus present, the floret raised within the ghuues ou a short rounded or stalk-like base, +- Glumes long-awned. 17.
. Botany. Botany -- California. 25/- iiJ. faalaris. Glumes boat-sliaped. TltlCK poll » Callus not manifest; floret sessile within the glumes. +- Spikelots of two kinds, in pairs or threes 13. ^gopogon. One spikelet in a cluster perfect, the others staminate or neuter. _ _, -^ +- Spikelets alike and perfect. 1' fr?w ^"o^"f-, Spikelets in small umbellate clusters. 16. Sporobolus. in usually open panicles. Seed free from pericarp (utricle) ⦠* Callus present, the floret raised within the ghuues ou a short rounded or stalk-like base, +- Glumes long-awned. 17. Polypogon. Glumes nmch longer than the floret. +- 4- Glumes awnless (except in one AgrostLi). 18. Agrostis Lower gl»'ne s,ig,.t,y ^ ,â,i ^^^ ,i^â ^,^^ ^^.^ ^^^^^^^ ^^^ 10 Gastridium ri^nill ft '" , -'"'."^times awned on the back, the often wanting. 9n" rfn,;. T ^â¢"">*'s with a shining ventncose base. Inflorescence .si^ike-like thet!ro;:af,rr'"'""- ^^'""^ ^l-tinctlystlpitate. Lower pallt .short awned below 21. Muhlenbergia Glumes variable, sometimes minute. Lower palet awned from the apex J loret mostly bearded at base and early deciduous. ^ 4- 4-^ Glumes longer than the floret, which has a more or less conspicuous tuft of hairs at base 22. Vaseya. Awn terminal. No rudiment of a second flower. 23. Calamagrostis. Awn from below the tip of palet. Ihidiment present and mostly bearded ^^"'''deH ^^^r^^^''"^,- . â ''â¢'"V''"'^ ''''''^y l-flowercl. Floret with a sharp-pointed callu. deciduous Lower palet the upper and the grain, coriaceous and i Xrated iri aiHl terminated by a (usually long) simple or triple^w,,: indurated m 2^: SUprT^n ^mlihiXISlM £o;-r^'"^°"^- '''''''' ^'"^^'^^ '''''' '^^ ^^^^ ^-- 20. Aristida. Awn triple, continuous or (rarely) with the palet '"''mpewl!:t or'rluibm^Ii'vi " '''""';'V ⢠f ?-'-
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Keywords: ., bookauthorwatsonsereno18261892, bookcentury1800, bookdecade1880
