276 RYDBERG: SOME GENERIC SEGREGATIONS 
TouTEREA Eaton & Wright, N. Am. Bot. 454. 1840 
Bartonia Sims, Bot. Mag. p/. 1487. 1804. Not Muhl. 1801. 
Jorreya Eat. Man. Ed. 7. 560. 1836. Not Raf. 1818. 
Flesperaster Cockerell, Torreya, I: 142. IgOI. 
This genus contains nearly all the large-flowered species in- 
cluded in Mentzelia. The outer filaments are more or less dilated ; 
in most they are without. anthers and in some as large as and 
resembling the petals. These species are often described as hav- 
ing ten petals. The genus Zouterea was based on the first two 
species mentioned below; 4artonia Sims on Bartonia decapetala 
and the type of H/esperaster is the same. As far as I know, the 
following species belong here : 
1. T. decapetala (Pursh); Aartonta decapetala Pursh, Bot. Mag. 
pl. 1487. 1812; B. ornata Pursh, Fl. Am. Sept. 327. 1814; 
Touterea ornata Eat. & Wright, N. Am. Bot. 454. 1840; JZ 
ornata Torr. & Gray, Fl. N. Am. 1: 534. 1840. 
2. T. nupa (Pursh) Eat. & Wright, N. Am. Bot. 454. 1840; 
Bartonia nuda Pursh, Fl. Am. Sept. 328. 1814; WZ. nuda Torr. 
& Gray, |. c. 
3. T. laevicaulis (Dougl.) ; Bartonia laevicaulis Doug). ; Hook. 
Fl. Bor. Am. 1: 221. 1833; MZ. daevicaulis Torr. & Gray, 
FicN.. Am. 4: §35.- 1840. 
4. T. Brandegei (S. Wats.) ; J7. Brandegei S. Wats. Proc. Am. 
Acad. 20: 367. 1885. . 
5. T. parviflora (Dougl.) ; B. parviflora Dougl. ; Hook. FI. Bor. 
Age 2: 221. 189%, 
6. T. pterosperma (Eastw.); I. pterosperma Eastw. Proc. Cal. 
Acad. II. 6: 290. 1896. 
7. T. stricta Osterhout Mss.; Hesperaster strictus Osterhout, 
Bull. Torrey Club, 29: 174. 1902. 
8. T. Rusbyi (Wooton); Mentzelia Rusbyi Wooton, Bull. Torrey 
Club, 25: 261. 1898. 
9. T. Wrightii (A. Gray) ; 7. Wrightti A. Gray, Pl. Fendl. 48. 
1848. 
10. T. speciosa Osterhout Mss.; MZ. speciosa Osterh. Bull. Torrey 
Club, 28: 689. 1901; J. aurea Osterh. Bull. Torrey Club, 
28: 644. 1Ig01. Not Nutt. 1818. 
ae 
