POLYaONACE^. (BUCKWHEAT FAMILY.) 'i'03 



margm. Spikes loose, filiform, erect; perigonium pink, glandless; 

 ochreoles densely ciliate — Late summer aud autumn — Ditches ; coast 

 and lower mountains ; Aintab. 



Var. salicifolium, Boiss. Leaves broader and shorter. CiliEe 

 of ochrese and ochreoles short. 



4. P. Hydropiper, L. © Smartweed. Water Pepper. .5 to 

 .8, acrid; stems erect or ascending, branched. OchresD short, sliort- 

 ciliate ; leaves oblong-lanceolate to lanceolate, glabrous or scabridulous 

 at nerve. Spikes loose, filiform, pendulous ; perigooium ijxir^lhh'^ 

 green; glandular-2mnctate ; ochreoles unarmed — Spring and summer — 

 Ditches ; coast and lower mountains. 



5. P. Persicaria, L. Lady's Thumb. .3 to .8; stems erect 

 or ascending, simple or stiff -branched. Ochrese ciliate ; leaves oUong- 

 elliptical to lanceolate, sparingly hairy to glabrescent. Spikes peduncled 

 or sessile, oblong- cylindrical, dense, rather erect; perigonium greenish- 

 purple, destitute of glands ; ochreoles ciliate — Spring and summer — 

 Ditches and wet places ; common. 



6. P. lapatliifoliiiiu, L. Hummeulah. .3 to. 8; stems erect, 

 branching. Ochrese truncate, sparingly sJiort-ciliate ; leaves taperino- 

 at base, ovate-elliptical to lanceolate, ciliate at inargin. Spikes oblong^ 

 cylindrical to cylindrical, dense, erect or somewhat nodding ; pedicels 

 and greenish-white or reddish lierigonium more or less glandular ; ochreoles 

 not ciliate — Summer and autumn — Ditches ; common. 



7. P. Convolvulus, L. Black Bindweed. Stems climbing. 

 Leaves cordate-sagittate. Flowers 3-6, clustered in axils. Outer lobes 

 of perigonium somewhat Tceeled — May to September — Fields ; coast 

 and lower mountains of coast range ; Antioch. 



8. P. dumetofum, L. © Climbing False Buckwheat. Stems 

 climbing. Leaves cordate-sagittate. Flowers 3-6, clustered in axils. 

 Outer lobes of perigonium memhranouS'icinged — July to September — 

 Amanus. 



9. P. polycnemoide§, J. et ^ ^^,^ 

 Sp. © .2 to .5, glabrous, 2^ws^ra^ ^^^' ^""^' 

 many-stemmed from lase ; stems 

 slender, fiaccid. Leaves .005 to .01 

 long, linear to siibulate. Flowers 1-3 

 in axils, short-pedicelled, forming 

 long, slender, leafy spikes; perigon- 

 ium ffreenish-white ; akene minutely Tip of flowering branch of roiygonum 

 dotted - Summer - Gravelly and poiycnemoides. 



sandy places ; subalpine Lebanon and Antilebanon, plain of Damascus, 

 and eastward, and northward. 



10. P. Bcllardi, All. © .3 to .5, glabrous, erect, paniculate. 

 Leaves elliptical to lanceolate, .01 to .04 long. Flowers 2-3 in a cluster, 

 with pedicels as long as jJerigonium or longer, forming loiig, slender, 

 interrupted, naled sjnkes ; perigonium green with reddish margins; 

 akene minutely -dotted, somewhat glossy — IVIay to September — Com- 

 mon throughout. 



