x WerEsT AMERICAN SCIENTIST. 
tube constricted above the exsert oval ovary; 12-13 exterior green sepals, 
lanceolate, cuspidate, fimbriate, 8 interior ones, reddish, longer, lance-lin- 
ear, slizhtly ciliate; 18-21 petals, rose-red, with a deeper colored streak, 
lance-linear, shorter and narrower than the inner sepals, entire; stamens 
not half as long as petals, with oval anthers; style much longer than sta- 
mens, with 5-6 short, greenish-yellow suberect stigmas.” —Engelmann, 
Trans. Academy of Science of St. Louis, ii. 201. 
Engelmann, Proc. Am. Acad. iii. 261; Cact. Mexican Boundary, 6 ts 6, 
f. g-12 
Setea: -Dyck, Cact. HD. ed. 2, 82. 4 
ee gg Cact. 30. 
Walper 
Seite eee teehee Index, 402. 
Cactus barbatus Kuntze, Rev. Gen. Pl. 261. 1891. 
—Coulter L. c. 102 
M. BENECKEI Ehrenberg. 
“Stamm cylindrisch, meistentheils aber schief eee nabelfor- 
mig eingedruckt, einzeln und aussprossend ; Achseln anfangs wollig; War- 
zen dunkelgrun, hellgrun, gelbgrun, auch grun, gelb und 1 roth, tenonlaes 
ig, unten 4 seitig, oben’schief abgestumpft; Scheibe anfangs meistens 
kurzwollig; Stacheln zweierlei: Aeussere 12-15, horizontal anliegend, von 
fast gleicher Lange, weisslich, gelblich oder an der Spitze braun. itt- 
lere starker, 2-6, braun oder an der Spitze schwarz, wovon 1 oder 2 nach 
unten, das doppelte langer, nach der Spitze zu sich Merge und shock- 
erformig gekrummt sind. Stamm 2-3 Z. hoch, 2-2% Z. Durchmesser. 
rzen 4-6 Lin. lang, 114-2 Lin. dick. a aa 3-4 Lin. lang® 
ieittiece Stacheln + Lin. lang Mex tn, Etienne Benecke in 
Mexico zu Ehren.”—Carl henley: Sestak lig ti. 8 1843. 
Punuucie AGZ. 1844, 401 (reprinted). 
Ip pv. — 
= Goodridgii fide Hooker & Jackson, Index Kewensts, iit. 156. 
= Goodrichii? fide Salm-Dyck, HD. ed. 2. ro, gt. 
M. BIcoLoR Lehmann, Del. Sem. Hamb. 1830 (Litt.-Ber. zu Linn. 1831. 11). 
Original nigella cig not seen. 
Depressa, ovata, s. cylindracea, prolifera; axillis lanatis; tuberculis 
parvulis conicis; aculeis exterioribus 16-20 tenuissimis recurvato-radianti- 
bus, centralibus 2-4 rigidis, majoribus albis apice nigris interdum subpol- 
reis; stigmatibus 5. Abundant on the calcareous hills of the Rio Grande 
below Laredo, Texas, Dr. Poselger: fl. June and July—Plant 3-12’ high, 
the larger specimens 2-3‘ in diameter; radial spines 1-2, lower central ones 
4-5, the upper 6-10" long. Flower about 9‘ long."—Engelmann, Proc. 
Am. Acad. iii. 263;—‘“M. bicolor, Lehm., is not a Texan plant, as has been : 
stated inadvertently in Synops. p. 7 Dr. Poselger found it on another 
