CACTEZX OF PLANTA LINDHEIMERIANA, 119 
a. CESPITOSA: gracilior ; aculeis radiantibus sub-12, centrali subnullo; sepalis 15-20; stigmatibus sub-5. 
8. ROBUSTIOR: subsimplex; aculeis radiantibus sub-10, centrali robustiori; sepalis 20-25; petalis 25-30 ; 
stigmatibus 7-8. Flowers (at St. Louis) in May, — Stems 1}-23 inches high, alavaie: of smaller dianintes taberdhen 
i often in 13 rows ; spines 3-4, in B. 4-8 — long ; central spine, when present, 6 lines long. Grooves 
proliferous worries the upper or the lower end. Flowers 13-2 inches long, and of the same diameter when fully open, 
radiating like stars with their pale yellow, silky vie giving this species a most beautiful appearance when several 
open on the same morning ; petals 12-15 lines long and 2 lines wide. Berries 3-5 lines in diameter. 
ECHINOCACTUS. [201] 
The Lape described i in the account of Lindheimer’s plants under the name of L, setispinus were the most 
northern and rather diminutive forms of this beautiful species ; the flowers were incorrectly described from a withered 
bud adhering a one of the specimens. Numerous plants have since been sent by Lindheimer from San Antonio, and 
by the St. Louis Volunteers from the lower Rio Grande. 
E. sETIsPINus, Engelm. 1. c.: ovato-subglobosus s. oblongo-cylindraceus ; costis 13 acutis sepe undulatis 
s. subinterruptis plus minus sbliquis; ; areolis remotis, junioribus flavido- s. albido-tomentosis ; aculeis steer inesr 
une ate 10-16, summis longioribus imisque flavicanti-fuscis, lateralibus albidis, centrali subsingulo robusti 
uoso 8. apice uncinato; floribus solitariis nudis infundibuliformibus, tubo glaberrimo ; ; sepalis inferioribus 
ordi obtusis s. cuspidatis 25-40, superioribus elongatis lanceolatis 15-25 omnibus margine membranaceis basi 
auriculato-cordatis tenuiter ciliatis ; petalis 20-30 (cum basi miniata flavis) oblanceolatis acutis integris s. denticulatis ; 
stylo supra stamina rubella ine exserto; stigmatibus 5-8 sulphureis recurvis s. erectis; bacca pulposa globosa 
rubra ter ae sepalorum infimorum Sa es stipata. 
US : ae subovatus ; aculeis radialibus 10-12, centrali robustiori hamato. . hamatus, Muhlenpf. 
E. Makers, 
B. 8 EUS: minor, subglobosus ; aculeis radialibus 14-16, centralibus 1-3 setiformibus flexuosis. L. setispinus, 
Engelm. = c. — Texas, from the Colorado to the Rio Grande. Flowers from April or May to October, and therefore, 
on account of its beautiful flower, one of the most valuable species for cultivation. — Plant 2-4 inches in diameter and 
14-6 or 8 inches high ; flowering when quite small, simple or (in cultivation at least) sometimes ogee at base. 
Var. a. is the larger ae form, with fewer, stouter, and longer spines (radial 6-16 lines, central 12- 
lines long). Var. 8. is the smaller, more northern form, with more and thinner spines (radial 5-10, ane [202] 
12-16 lines long). ices ie 20 to 35 lines long and 24-30 in diameter when fully open; petals then 
often somewhat recurved; flowers open two days, only in bright forenoon sunshine. My specimens from the Rio 
Grande have 5 erect stigmata and a longer flower ; ps the others have 6-8 spreading or even recurved stigmata and a 
shorter flower-tube. Berry about 4 lines in diamet Withered —- finally deciduous. Fruit often bursting, 
when the filamentous red pulp and the black, ehfnahile shag ed, verrucose seeds are seen. This pulp is formed by the 
clavate, elongated, twisted funiculi, which most probably form che pulp “of all the soft Cactus fruits; but they do not 
always remain as distinct as in this species. 
E. Texensis, Hepf. LE. Lindheimeri, Engelm. 1. c. Mostly depressed, but sometimes globose. Common 
from the Colorado +e the Rio Grande, and from thence to Saltillo (Dr. Gregg). Near New Braunfels it prefers 
the so-called Muskit-flats, or fertile level places with muskit-trees, overflowed in the rainy season. My specimens 
have several times fructified. Berry subglobose, pulpy, red, about 8 or 9 lines in diameter,. covered with spiny 
bristles and soft wood, crowned by the woolly remains of the flower; seeds reniform, compressed, large, smooth, and 
shining. Ribs in smaller specimens 13-14, in larger mostly 21, sometimes 24. Areole about 6 lines long and 12 lines 
apart. Spines from 6-10 lines long in some, 15-25 lines in others ; sometimes the central spine is 2 or 3 lines 
Flowers all open within a few days, i in May (in St. Louis) ; unlike the last-mentioned species. 
CEREUS. 
402. C. casprrosvs, Engelm. Plant. Lindh. 1. ce. Common about New Braunfels; in flower in May. — 
This plant has been cultivated in Europe, as Prince Salm informs me, under the name of Echinopsis Reichen- 
bachiana, Hortul., and has been confounded with ©. pectinatus. Compare Wisliz. Rep. Appendix, note 45. [203] 
This species has ins been sent from Saltillo by Dr. Gregg. Mr. Lindheimer has sent from the granitic region 
of the Liano a beautiful variety with chestnut-brown spines. 8. CASTANEUS. — The characters given in Plant. 
Lindh. to this species have been corrected in Wisliz. Rep. l. c. I add here only that the fruit of this, as well as of 
all the other northern Cerei seen by me, ripens within a few weeks, — contrary to what is observed in our Mamil- 
larie and Opuntie,— and mostly bursts open longitudinally when ripe. —I cannot omit an interesting morpho- 
logical observation made on this species. The usual structure of the flower of all Cerei observed by me is the 
