Yucca rigida

Yucca rigida (Engelmann) Trelease Blue Yucca, Denticulate-leaf Yucca. Mo. Bot. Gard. Ann. Rpt. 13: 65-66. 1902. Synonymy: Yucca rigida Stanley. Contr. U. S. Nat. Herb. 23: 1-93. 1920. Yucca rupicola rigida. Engelmann. Trans. Acad. St. Louis 3: 49. 1873. Neotype: Mexico. Polsom de Mapimi, 1,160 m. 25. November 2002. FRITZ HOCHSTÄTTER, fh 0423, HEID. (The ENGELMANN Herbarium contained 2 specimens (No. s. A. and 477), now lost, of a Yucca collected in 1847 by DR. GREGG, in a dry valley between Mapimi and Guajuquilla, in northern Mexico, which he noted as from 5 to 10 feet high.) Other representative material studied. fh 0417, Presa Francisco Zarco area 1,240 m fh 0418, La Fe, 1,450 m fh 0423, Polsom de Mapimi, 1,160 m fh 0354 Rio Aguanaval area, 1,550 m fh 0355, Sierra el Rosario, 1,360 m fh 0356, Conejos area, 1,240 m fh 0357, Rio Santa Elena, 1,380 m fh 0359, La Flor, 1,170 m. SPECIES LIST	Yucca rigida, fh 0423, Polsom de Mapimi, 1,160m. Showing the characteristic glaucous blue foliage

Yucca rigida (Engelmann) Trelease

Blue Yucca, Denticulate-leaf Yucca.
Mo. Bot. Gard. Ann. Rpt. 13: 65-66. 1902.

Synonymy:
Yucca rigida Stanley. Contr. U. S. Nat. Herb. 23: 1-93. 1920.
Yucca rupicola rigida. Engelmann. Trans. Acad. St. Louis 3: 49. 1873.

Neotype:
Mexico. Polsom de Mapimi, 1,160 m. 25. November 2002. FRITZ HOCHSTÄTTER, fh 0423, HEID.

(The ENGELMANN Herbarium contained 2 specimens (No. s. A. and 477), now lost, of a Yucca collected in 1847 by DR. GREGG, in a dry valley between Mapimi and Guajuquilla, in northern Mexico, which he noted as from 5 to 10 feet high.)

Other representative material studied.

fh 0417, Presa Francisco Zarco area 1,240 m
fh 0418, La Fe, 1,450 m
fh 0423, Polsom de Mapimi, 1,160 m
fh 0354 Rio Aguanaval area, 1,550 m
fh 0355, Sierra el Rosario, 1,360 m
fh 0356, Conejos area, 1,240 m
fh 0357, Rio Santa Elena, 1,380 m
fh 0359, La Flor, 1,170 m.

SPECIES LIST

Yucca rigida, fh 0423, Polsom de Mapimi, 1,160m.
Showing the characteristic glaucous blue foliage