RYDBERG: SOME SENECIOID GENERA—II 415 
7. Odontotrichum sinuatum (Cerv.) Rydb. 
Cacalia sinuata Cerv.; Lave & Lex. Nov. Veg. Desc. 1:29. 1824. 
The type of this species came from San Angel, near Mexico 
City. Senecio albo-luteus Schultz Bip. and S. calophyllus Hems- 
ley are evidently synonyms. 
CHIHUAHUA: Gcldman 132; Hartweg 125. 
DuRANGO: Palmer 651. 
MIcHOACAN: Arséne 5740 
Mexico: Vischer 58; Petes 9875, 4274; Rose & Painter 
7808. 
PUEBLA: Arséne 93, 93a, 334, I18I. 
8. Odontotrichum Pringlei (S. Wats.) Rydb. 
Cacalia Pringlet S. Wats., Proc. Am. Acad. 25: 156. 1890. 
Jatisco: Guadalajara, Pringle 1811 (type), 11499. 
TeEpic: Palmer 1892 
Cotma: Palmer 1234. 
9. Odontotrichum Schaffneri (A. Gray) Rydb. 
Cacalia Schaffneri A. Gray, Proc. Am. Acad. 19: 53. 1883. 
San Luis Porost: Schaffner 294-729 (type); Pringle 4095, 
3566. 
10. Odontotrichum radulaefolium (H. B. K.) Rydb. 
Cacalia radulaefolia H. B. K. Nov. Gen. & Sp. 4: 169. 1820. 
he type was collected by Humboldt at Guanajuato, Mexico. 
The only specimen seen by me, which agreed with the original 
description, was collected in Mexico without given definite 
locality, Liebmann 169. Schultz Bipontinus transferred the 
species to Senecio. 
It. Odontotrichum tussilaginoides (H. B. K.) Rydb. 
Cacalia tussilaginoides H. B. K. Nov. Gen. & Sp. 4: 168. 1820. 
Schultz Bipontinus transferred the species to Senecio and 
Hemsley renamed it S. farfarus. The type came from Real 
del Monte, ‘Mexico. No specimens have been seen by me. 
12. Odontotrichum brachycoma (Blake) Rydb. 
Cacalia brachycoma Blake, Contr. Gray Herb. II. 52: 58. 1917. 
It is known only from the type locality, Uruapan, Michoacan, 
Pringle 101206. 
