CACTACEZ OF THE BOUNDARY. 199 
costis 11-13 interruptis ; areolis orbiculatis subconfertis, junioribus villosis; aculeis radialibus 13 sub-angulatis albidis 
apice adustis rectis seu paulo curvatis, lateralibus 6 longioribus, inferioribus 3 vix brevioribus, superioribus sub-4 
parvis ; aculeis centralibus 4 angulatis gracilibus rectis multo longioribus, inferiore longiore albido porrecto seu 
deflexo, superioribus fulvis arrectis; floribus sub apice lateralibus; ovarii pulvillis sub-30 aculeolos rigidos 8-14 
gerentibus ; sepalis tubi infeiioribus 15-20 ovato-lanceolatis ad axillam villosam aculeiferis ; petalis purpureis ; stig- 
matibus 12 erectis viridibus ; bacca ovata; seminibus oblique obovatis tuberculato- Soden hilo subbasilari oblongo. 
(Tab. LVII.) 
fountains about San Felipe, on the eastern declivity of the California Cordilleras (Parry); common in — [37] 
Gila valley, especially near the Casa Blanca, above the Pimas village (Schott). Flowers in June.— Loosely cespi- 
tose, not more than 4 or 6 or at most 8 stems together; stems 5-10 or even 12 inches high, 2-3 isaac in diameter. 
Radial spines 3-6 lines long; central ones 1-2 inches long, upper one ae shortest, lower one the longest. Flower 
rather low down on the plant, between 2 and 3 inches long. Fruit at last naked, fleshy, 14 inch long, 1 inch 
in diameter. Seed 0.6-0.7 line long, similar to that of C. Fendleri, ‘i tubercles running together and forming 
irregular pits. 
14. C. potyacantuus, E. in Wisliz. Rep. : ovato-cylindricus, plerumque ramosissimus, ceespitosus, seascape 
costis 9-13 subcompressis obtusis interruptis 5 ; areolis suborbiculatis remotiusculis seu demum confertis; aculeis 
teretibus robustis — rectis albidis seu e cinereo rubellis apice obscuris demum totis cinereis, exteriosibas 8-12 
1 bulbosis, laterali ongioribus, centra ibus 3-4 bulbosis paulo robustioribus equilongis seu longioribus, 
janiéaibons sepe PT variegatis aadhies sub vertice aoa on noctuque apertis; ovarii pulvillis 
16-20 tomentosis aculeolos 6-15 variegatos sical sepalis tubi inferioribus 10-12 triangulari-lan ceolatis aculei- 
eris, superioribus lineari-lanceolatis seu oblanceolatis Anika seo ay seu summis obtusis ; petalis 18-2 
spathulatis obtusis integris seu erosis ch eis coccineis basi pallidioribus erecto-patulis; tubo intus basi nudo, 
staminibus brevibus ; stylo exserto ; stigmatibus sub-8 erectis; bacca subglo ; seminibus majusculis swab 
tert ; hilo subbasilari parvo angusto ; embryone parcissime albuminoso ; cotyledonibus brevibus i 
(Tab old 
common plant at El Paso (W right, Bigelow, Parry, Thurber), and as far south as the mountains west of 
Chihuahua ‘(Wislizenus), on table-lands ond mountains, and also on sand-ridges or stony hills. Flowers in March and 
April; fruit in June. — Heads 5-10 inches high, 23-4 inches in diameter, pale-green or glaucous; areole 3-1 inch apart. 
Spines very variable; exterior ones not strictly radiating, but spreading ; upper ones about 6 lines, lateral and — 
ones 9-12 lines long ; central spines in young specimens single, in older and more perfect ones always 3-4, — in s 
ardly longer than the radial ones, 9-12 lines long, but usually longer, and sometimes 2 or even 23 inches long; ‘sie 
central spine always longer than the others. Flowers 2-3 inches in length, spreading not quite so wide, remaining 
open day and night, often for four or five days, and profusely adorning the plant for four or six weeks in succession ; 
petals rigid and somewhat concave, rounded, of a deep-red or blood-color; the base of the tube inside naked for 
3 or 4 lines; stamens about 600; berry 3-1} inch long, greenish-purple, of a pleasant gooseberry taste. Seeds larger 
than in any ee Echinocereus known to me, 0.8-0.9 line long, oblique; hilum small, subbasilar; embryo with some 
albumen (which is not common in this genus), large, a little curved; cotyledons almost foliaceous, approaching the 
form observed in the cylindric Ceret. 
15, C, PAUCISPINUS, sp. nov.: ovatus seu ovato-cylindricus, perviridis, simplex, seu parce ramosus, costis 
5-7 interruptis ; sulcis latis sursum wukias areolis remotis; aculeis 3-6 seu rarius 7 robustis basi bulbosis rectis seu 
ceca radiantibus, infimo pallidiore, ceteris rufis fuscisve, omnibus demum nigrescentibus, centrali nullo seu 
rarius singulo robusto subangulato atrofusco sursum verso seu porrecto; seminibus obovatis obliquis subconfluento- 
eer hilo basilari elliptico. (Tab. LVI.) 
m the San Pedro to the mouth of the Pecos, on rocks and gravelly ee hills (Wright, Bigelow). — 
Stems 5-9 indice high, 2~4 inches in diameter, not cespitose like the last species, to which it seems to be allied, [38] 
but either simple or with few branches from near the base; ribs few, ois wide and shallow; areole 
8-10 lines apart; spines few and dark-colored, 9-15 lines long, upper one often shorter, and central spine when present 
15-20 lines long; flower and fruit unknown. The seed sent by Mr. Wright is similar.to that of C. polyacanthus, 
0.7-0.8 line long, oblique, with slightly confluent irregular tubercles, and a large and wide hilum. 
his species on the Pecos seems to take the place of the more western C. polyacanthus, which farther east is 
represented by C. Remeri, and farther west by CU. pheniceus. From all these it is distinguished by the few ribs and 
the few dark spines. 
16. C. BERLANDIERI, sp. nov-: humilis, perviridis; caule subtereti articulato-ramosissimo ; tuberculis conicis 
distinctis 5-6-fariis; areolis parvis orbiculatis ; aculeis tenuibus subsetaceis, 6-8 brevibus radiantibus —— 
trali pleramque multo longiore fuscato ; floribus lateralibus magnis purpureis; ovarii pulvillis sub-20 bre sit dies 
tomentosis aculeolos capillaceos basi bulbosos 8-10 longiores albidos et 1-2 senate fuscos gerentibus ; wan tubi 
