456 PLANTS OF NOKTH-WBST MOI^GOLIA AND CHINESE DZUNGARIA. 



EXPLANATION OF THE PLATES. 

 Plate 20. 



Sketch-Map showiiig the route talsen by Mr. Price tlirougli N.W. Mongolia and Dziingaria 

 iind tlie localities mentioned in the pa| er ; based upon the map in tbe Geographical 

 Journal, vol. xxxix. (June 1912), by permission of the Royal Geographical Society. 



Plate 21. 



Figs. 1-7. Saussurba Pbicei, N. D. Simpson. 



I. Plant (nat. size), i?. Floret, x 4, 3. Anthers, X 5. 4. Stigma, x 15. 5 and 6. Ex- 

 ternal and interu.il involucral scales, X 2. 7. Seta from the receptacle, X 6. 



Eigs. 8-14. Lathyrus Frolowii, N. D. Simpson. 



8. Plant (nat. size). 9. Vexillum, x 3. 10. Ala, x 3. 11. Carina, X 3. 12. Stamens 

 and ovary, x 3. 13. Calyx, X 3. 14. J^eaf-margin, highly magnified. 



Plate 22. 



Figs. 1-7. Saussurea pseudo-alpina, N. I). Simpson. 



1. Plant (nat. size). 2. Floret, x 3. 3. Anthers, X 5. 4. Stigma, x 5. 5 and 6. Internal 

 and external involucral scales, X 3. 7. Seta from the receptacle, x 3. 



Figs. 8-12. Sknecio Pricki, N. D, Simpson. 



8. Plant (nat. size). 9. Disc floret, x 4. 10. Bay floret, x 2. 11. Anthers, x 10. 

 12. Stigma, x 25. 



Plate 23. 

 Figs. 1-3, Peucedanum Prioei, N. D. Simpson. 

 1. Plant (nat. size). 2. Fruit, x 5. 3. Transverse sections of mericarp, x 0. 



Figs. 4-12. PoA Pricei, N. L. Simpson. 

 4. Plant (nat. size). -5. Spikelet, X 7. 6 and 7. Glumes. 8 ^'alve and palea, x 5. 

 9. Half a valve. 10. Palea. 11. Oarycpsi.i. 12, Ovary with stigmas. 



