Inventory of the flora of Big Bend National Park Brewster County ...

E. steereae Clover)]
Echinocereus enneacanthus Engelm. var. enneacanthus
[Echinocereus dubius (Engelm.) Engelm. ex Rumpl.]
[Sperry, 1938; Moore, 1967; Benson, 1969; Weedin, Powell & Kolle, 1989; Evans, 1998]
[Records: Boquillas Canyon Road, Moore 671 (MICH); Santa Elena Canyon Road,
Moore 290, 294, 305, 307, 683, 684, 689 (MICH); Boquillas Canyon, Moore 326; 5 mi. S
Of Panther Junction, Moore 680, 681 (MICH); Glenn Springs, 12 Apr 1946, Sperry 1905;
Costolon, BBNP, n=11, Weedin 437 (SRSC)]
Echinocereus pectinatus (Scheidw.) Engelm. var. pectinatus
[Benson, 1968]
[Brewster Co.: road to Boquillas Canyon, BBNP, Benson 16904 (observed)]
Echinocereus pseudopectinatus (N. P. Taylor) N. P. Taylor
[Echinocerus pectinatus (Scheidw.) Engelm. var. minor auct non (Engelm.)
L. Benson]
[Benson, 1968, 1969]
[Brewster Co.: lower Tornillo Creek, 11 Apr 1965, Benson 16504 (RSA-POM)]
Echinocereus stramineus (Engelm.) F. Seitz. Strawberry Cactus
[Sperry, 1938; Wells, 1965; Moore, 1967; Benson, 1969; Evans, 1998]
[Records: Rt. 385, 21 mi. S entrance to BBNP, King 2577; Hot Springs, 20 Apr
1948, Whitehouse 19704; Boquillas Canyon Road, Moore 668, 669, 670 (MICH); Santa Elena
Canyon, Moore 301 (MICH); E edge of Chisos Mts., Cutler 761; Hot Springs, Jones 26310
(US); 2 mi. from Boquillas Canyon, Moore 672 (MICH); Dead Horse Mts. (Wells, 1965)]
Epithelantha bokei L. Benson Boke Button Cactus
[Epithelantha micromeris (Engelm.) A. Weber ex Britt. & Rose var. bokei (Benson)
Glass & Foster]
[Benson, 1969; Glass & Foster, 1978; Evans, 1998]
[Records: near Boquillas Canyon, 12 Jul 1955, Boke s.n.(RSA-POM, type)]
Epithelantha micromeris (Engelm.) A. Weber ex Britt. & Rose Common Button Cactus
[Epithelantha micromeris (Engelm.) Weber ex Britt. & Rose var. micromeris]
[Sperry, 1938; Benson, 1969; Glass & Foster, 1978; Evans, 1998]
[Brewster Co.: Chisos Mts. between Boot Spring and South Rim, Warnock 12705;
Juniper Canyon, Chisos Mts., Ferris & Duncan 3591; near top of Crown Mtn. (Sperry,
1938)]
Ferocactus hamatacanthus (Muhlenpfordt) Britt. & Rose Texas Barrel Cactus
var. hamatacanthus
[Sperry, 1938; Benson, 1969; Evans, 1998]
[Brewster Co.: N of Santa Elena, 16 Jul 1955, Benson & Benson 15507; Chisos
Mts., 22-24 Nov 1922, Pilsbry s.n., Warnock 12393, 12394; Pinnacle Mts. and
Boquillas (Sperry, 1938)]
Lophophora williamsii (Lemaire) Coulter Peyote
[Sperry, 1938}
[Brewster Co.: Chilocital Mtn. (Sperry, 1938)]
Mammillaria heyderi Muehlenpfordt Heyder Pincushion Cactus
var. heyderi
[Mammillaria gummifera Engelm. var. applanata (Engelm.) L. Benson]
[Sperry, 1938; Benson, 1969; Evans, 1998]
[Brewster Co.: Chisos Mts., 22-24 Nov 1922, Pilsbry s.n.]
var. meiacantha (Engelm.) L. Benson
[Mammillaria gummifera Engelm. var. meiacantha (Engelm.) L. Benson]
[Benson, 1969]
[Brewster Co.: Panthe Pass, Chisos Mts., 16 Jul 1955, Benson & Benson 15510;
junction to Panther Pass, 16 Jul 1955, Benson & Benson15501; Boot Spring Canyon,
Warnock 12394; Dead Horse Mts., Warnock 11065]
Mammillaria lasiacantha Engelm. Lacespine Cactus
[Sperry, 1938; Evans, 1998]
Mammillaria pottsii Scheer ex Salm-Dyck Potts Mammillaria