20 TRANS. ST. LOUIS ACAD. SCIENCE. 



21. L. CONGESTUM, Gray, Proc. Am. Acad. vi. 521. — About a foot high, 

 glaucous ; stem striate, simple below, with several nearly erect, somewhat 

 angled branches above ; leaves few, linear, acute, somewhat pubescent 

 (i X -0-30 rnm.), with stipular glands; flowers rose-purple, very short- 

 pedicelled, in glomerate clusters terminating the branches; sepals rather 

 broad, acute, conspicuously pubescent, entirely destitute of marginal 

 glands; petals obovate-spatulate, about 7 mm. long, nearly twice the 

 length of the calyx, 2-toothed and 3-appendiculate, the median appendage 

 unusually long, somewhat hairy; stamens and pistil one-third shorter 

 than the petals, the filaments not toothed; capsule short ovoid, nearly as 

 long as the calyx, cartilaginous-striate at base of septa, 6-celled below. — 

 Marin county, California {Bolander, 2386). 



* * * Z,. irt'sepalum, Kellogg, Proc. Calif. Acad. iii. 42, f. 10, is Helian- 

 t/iemum scoparium, Nutt., according to Gray, Proc. Amer. Acad. vi. 521. 



L. San Sabeanum, Buck. Proc. Phil. Acad. 1861, 450, is I^echea 

 Drummondii, Torr. & Gray, according to Gray, Proc. Phil. Acad. 1862, 

 162. 



EXPLANATION OF FIGURES. 

 Plate III. Fruit of Linum. 

 I. Linum Floridanum. 2. L. Virginianum. 3. L,. rupestre. 4. Z.. 

 Kingii. 5. Z,. Neo-Mexicanum. 6. L. sulcatum. 7, 8. L,. aristatum. 

 9. L. rigidtim. 10. L. Berlandieri. 11. L. multtcaule. 12. Z,. digynum, 

 13. L. drymarioides. 14. L. Clevelandi. 15. L. adetiofhyllum. 16. Z.. 

 micranthum. 17. L. Breweri. All X 4- — 18. Seed of L,. dry7nariotdes^^ 

 X14. 



Plate IV. Petals and filaments of § Hesperolinon. 



I. Linum digynum. 2. L. drymarioides. 3. L. adenopliyllum. 4. Z,.. 

 Breweri. 5. L. Clevelandi. 6. L. micraitthum ; A, Yorvaa. exappendicu- 

 latum, 7. L. spergulinujn. 8. L. Califor7iicum. 9. Staminal tube of 

 same, laid open, showing the glands. 10. Z. congestum. 11. Filaments 

 of same. 12. L. Berlandieri, showing the transverse hairy line common 

 to some species of Linastru?n, and corresponding in position to the 

 appendages of Hesperolinon. — All seen from the ventral side, X I4- 



EKEATUM. 



Page 10, line 18. Sepals persistent or at length deciduous. 



