1292 
Xanthium calıforniecum Greene 541 
— eanadense Hook. et Walk. Arn. | 
541 
— — Spr. 541 
— var. echinatum Gray 541 
— — var. Wootoni Cockerell 541 
—  eatharticum Phil. 541 
- Cavanillesii Schouw. 541 
— eommune Brit. 541 
— Wootoni Cockerell 541 
eylindrieum Millsp. et Shrrff. 541 
- echinatum Murr. II, 411 
— _ __ Thell. 541 
— yvar.laciniatum Hegi 541 
— lus.laciniatum Thell. 541 
glanduliferum Greene 541 
slobosum Shull 541 
indiecum Klatt. 540 
inflexum x saccharatum 541 
italieum Kern. 541 
- — lus.laciniatum Aschers. 
Macouniüi Britt. 541 
- macrocarpum 540, 541 
- — subsp.italieum Nym. 541 
— var.laciniatum Pouzolz. 540 
occeidentale Bertol. 541 
oligacanthum Pip. 541 
orientale Burm. 540 
— — (av. 541 
- — var. canadense Tuzson 541 
- — var. echinatum Tuzson 541 
— var.indiecum Deb. 540 
- — var. macrocarpum Tuzson 541 
palustre Greene 541 
pennsylvanicum Small 541 
pungens x saccharatum 541 
saccharatum Wallr. 541 
silphiifolium Greene 541 
speciosum Kearney 541 
spinosum II, 928 
—- var. canescens Costa y Cuscart 
541 
strumarıum H.B.K. 541 
541 
— 2 2 7%..9540 
— — ß. canadense Torr. et Gray 
541 
— —. yar. echinatum Hillebr. 541 
— — Kteze. 541 
— — var. sıbiricum Patrin 540 
- chrysacanthum Costa y Cuxart. 541 
| 
Xanthium ealifornisum— X ylopia grandiflora 
| — varians Greene 541 
— Wootoni 541 
Xanthomyrtus Diels N. @. 850. — II, 
540 
_ Xanthophylium N. A. 882. — II, 197, 
203, 210, 565 
— sylvestre II, 205 
Xanthophytopsis Pitard N. G. 962 
Xanthophytum N. A. 962. — II, 598 
Xanthoria candelaria f. fulva Hoffm. 
10 
' Xanthorrhoea quadrangulata II, 300 
Xanthosia N. A. 1057 
ı Xanthosoma N. A. 26. — II, 12, 249 
appendiculatum II, 19 
_ — Maximiliani II, 249 
ı — sylvestre Bello 25 
ı Xanthostemon N. A. 850 
Xanthoxalis II, 554 
‚ — Bushii Small 861 
— cymosa Small 861 
| — hirsuticaulis Small 861 
interior Small 861 
— macrantha Small 861 
pilosa Small 860 
texana Small 861 
Xantonnea Pitard N. 6. 962 
| — hoaensis Pierre 939 
Xantonneopsis Pitard N. &. 962 
Xenophoatia caryophylla Vell. 383 
Xerocarpa II, 846 
Xerodraba N. A. 598. — II, 444 
' — eolobanthoıdes Skottsb. 576 
Xerophyllum II, 303 
Xerospermum N. A. 975. — II, 605, 
606 
— Noronhianum Bl. 976 
Ximenia II, 550 
—  americana II, 550 
Xolisma II, 196, 458 
Xylaria II, 804 
Xylobium N. A. 209 
Xylocarpus granatum II, 582 
Xylochlamys Domin 795 
Xylonagra II, 549 
Xylophacos N. A, 783. — II, 514, 763 
— stipularis Rydb. 784 
Xylopia N. A. 249. — II, 208, 359 
360, 815 
— grandiflora St. Hil. 250 
