PAMMEL ON THE SEED-COATS OF EUPHORBIA. 563 



COMPOSITE (continued). 



Callistefhus — Schenk (33). Harz (2), p. S42. 

 Carlini'a — Schenk (33). Harz (2), p. 842. 

 Chareieis — Schenk (33). Harz (2), p. S42. 

 Co?iyza — Schenk (33). Harz (2), p. 842. 

 Cremocefhalum certtuiim — Schenk (33). 



Erigeron Canadense — Nobbe (25Z>), p. 83, Fig. y2. Harz (2), p. 842. 

 Erechitis — Schenk (33). Harz (2). p. 842. 

 Eurybiopsis — Schenk (33). Harz (2), p. 842). 

 Felicia — Schenk (33). Harz (2), p. 842). 

 Helenium — Schenk (33). Harz (2), p. 842. 

 Heterofapfus — Schenk (33). Harz (2). p. 842. 

 Inula — Schenk (33). Harz (2). p. 842. 



Senecio — Goodale (42). p. 36. Gray: Syn. Flora, vol. i. pt. ii. p. 3S3 ; 

 most species with minute short hairs, which swell and emit a pair 

 of spiral threads when wetted. 

 — vernalis — Nobbe (25^), p. 82, Figs. 90. 91. Harz (2), p. 842. 

 Ste7iactis — Schenk (33). Harz (2), p. 842. 

 Zeranthemum — Schenk (33). Harz (2). p. 842. 



POLEMGNIACE.E. 



Collomia — Nrigeli (32). p. 119. Abraham (21). p. 8. Caspary. Bot. 



Zeit., 1852. p 663; 1854. p. 390. Goodale (42), p. 36. 

 C. coccinea—K'igeW (32), p. 119, Plate i. Fig. 167. Hofmeister (20), 



p. 28, Plate i. Fig. 13. Gray (30a), p. 259. 

 C. gratidijlora — Gray (30«), p. 259. 

 C. gilioides — Gray (30rt). p. 269. 

 C. heterophylla — Nageli (32). p. 119. Hofmeister (20), p. 28. Plate i. 



Figs. 12. 14. Gray (30a), p. 260. Lindley (29). 

 C. linearis — Na.^eli (32), p. 119. Balfour (36), p. 19. Gray (30(7), 



p. 259. Lindley (28). 

 C. nudicaulis — Gray (30a). p. 25S. 

 C. tenella — Gray (30«). p. 259. 



All species of section Eucollomia. with the exception of Collomia 

 gracilis, are provided with mucilaginous spirals. — Gray: Syn. Flo- 

 ra, vol. ii. Pt. i. p. 134. 



Gilia {Leptosipkon) — Schleiden : Beitriige Phylogenesis Miller's Ar- 

 chiv. Phys. vol. ii. Plate iv. 

 G. aurea — Gray (30«), p. 263. 



G. Bigelovii — '• •• p. 265. 



G. Bolafiderii — " " p. 263. 



G. demissa— " '• p. 263. 



G. dia7it/toides — '• " p. 264. 



G. dickoto?na — " " p. 265. 



