“34 -— 
91 [26] 
base, while most other Gerania have them united for about two-thirds or 
more of their length. 
n the prairies “about Wolf creek, in an elevation ot pelyeen 6,000 and 
7,000 feet, the smallest of a tribe ‘of cactacew was overed, numerous 
species of ‘which were ga in the course of the j pricy south and south- 
east: sare others have also been discovered in Texas. I mean those 
dwarfish Cerei, some of whi ich, have been described with the South Ameri- 
can ae Ecchinopsis, or have been referred alternately to Cereus or Echi- 
nocactus, and which I propose to distinguish from all these under the name 
of eesti indicating their intermediate ppation, between 
and Lchinocactus: they approach more closely to Cere ich genus 
they ty as well as sett genus “chinopsis, should Pes be ‘neluded as sub- 
A careful noone of the seeds of numerous cactaceae, has indicated 
to me two cipal divisions in that family: 1. Cotyledons, more or les 
Hokie. itscied with their edges to the edge, (or towards the umbibens,) 
and wi ith their faces to the flattened side of ne seed; when curved, accum- 
bent. 2. Cotyledons, mostly very distin t, foliaceous, direct with their 
edges to the faces, and with their faces to the edges of the seed, (or towards 
the umbilicus;) when Meh incumbent, and often circular or spiral. 
The first class comprises Maramillari, wihy a penn embryo; and 
- Pitsioceres, n. gen. Perigonii tubus alti germen productus, abbre- 
u 
viatus. Sepala exteriora s. tubi subulata, in axillis tomentosis se cu- 
4 Ss. la intericra subpetaloidea et petala longiora plurise a 
corollam breviter ph ela ae s. sub-campanulatam Saute 
amina numerosissima tubo adnata, limbo breviora s. eum subaequa 
Stylus stamina vix iperine. tigma multiradiatum. Bacca puluilligera 
setosa s. oi perigonio coronata. Seminum testa dura tuberculata 
nigra. ah vix cutvatus cotyledonibus brevibus contrariis. 
l mostly ovate; simple, or mostly branching from the base or 
pg tubeeles, forming few or niostly a great many ribs; bunches of 
short or long spines, distant or approximate, = Ned, crow og vertex 
never woallys’ flowers lateral, produced from last year’s growth, open- 
ing only in airs! but for two or three days in succession ; "elseel at 
night, or in dark weather 
N Etchinocereus vu cores n. sp. ovato-globusus, humilis, sub-13-costa- 
tus; areolis lanceolatis, approximatis, junioribus yillosis ; aculeis 16-18 rec- 
tis, radiantibus, lateralibus longioribus fuscis, reliquis albidis, centrali nullo 
s. elongato robusto, apice fusco; floribus lateralibus; tubo pulvillis 25—30 
ais ineniact setas albas 5-10 gere iribus stipato; sepalis interonbug, 
Rigi | sub-10; petalis 12-15 lineaci-obleliis, obtusis; baccis ell 
cis vir Hite oe seminibus parvis tuberculatis. 
on Wolf creek, flowers in June; Santa Fe, flowers in. May, 
anne ) Body 1 to 1} ‘inch h igh, oval; spines 1 or 1} to 3 lines long; 
pa spine when present 6 to 7 lines long; flower 1 inch pre and wide, 
e green ikea inside yellowish green; petals only 2 lines wide, be- 
ig kbbet 5 lines long. 
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