BOTANICAL REPOUT. 



439 



iij^; on the vertex a \ 



Plate 1. Hclihiocadm 'Simiisoni as it njipears in early »i)r...o, 



growtli of tiiLcrcules is visible, their tops covered with wool. 



Plate 2. - Details of 



o 



1. Four tuLercules from near the vertex, one shows the broatl scar where tlie 

 fruit has fallen off, another one is just developing Its spines, cxhibitinpr ilieir 

 points above the thick wool. 



Fig. 2. A detached tubercnle bearing a ripe fruit. 



Figs. 3 and 4. Flowers with the upper part of the tubercule and its }'<>ung spines 



Figs. 5 and G. The fruit magnified three times ; 



fi 



fig. 6 the broad 



Fig. 7. A scale of this fruit, more magnified, with two axillary spines. 

 Figs. 8-12. Seed: fig. 8 natural size, the others eight times magnified; fig. 



eral. fiff. 10 dorsal, fi^T- H basal view; fig. 12 part of the surfixce, highl} 



nified 



Fig. 13. Embryo, enveloped in the inner seed-coat, i 



mnniiified. 

 Fig. 14. Lateral, fig. 15 frontal view of the embryo, 

 Fig. 16. Seedhng, a few weeks old, magnified. 

 Fig. 17. Tubercules of the smaller variety from Colo 



opment. 



EcriixocACTus ruBisnxus O^iicc. nov.) 



costis 13 siibobl 



tuberculatis ; areolis orbiculatis, aculeis brevib 



srppe curvatis alljidis apice adustis velutinis dem 



1 



robustioribus, longioribus rectis curvatis sen hamatis, ceteris 5-8 breviorib 



aculeo centrali deficiente sen singulo robustiore longiore arrect.) sursum haniato; 



flore!: fi 



Pleasant Valley, near ihe Salt Lake Desert, found IsUj 9 without flower < 

 fruit. Plant 2 inches liio-h, 1 or 11 in diameter; compressed tubercules 4-G line'' di 



from one anotl 



i-ibs, radial spin€ 

 I have observed 



I find only 5-6 spines 



?s long, white pul)es- 

 other cactus ; on the 

 tjer and stouter than 



pwarcl, tlie numbGr increases to 10, one or more of the upp 



becoming still stonier and often hooked 

 akes 



^_ central 



hook ahvays turned inward 



upward. At first, only the dusky point of the spine is naked ; with age, the whole 

 coating seems to wear off. In another specimen, I find the spines 8-12 in number, a 

 little lonj^er, more slender, all radiating. The small supraspinal areola proves this 

 plant to be an Eclunoeactus ; it probably belongs, togetlier with the next, to the sec- 

 tion JlamaUy Synops. Cact, p. 15. 



4 



EcHixocACTus WiiiPPLEi, Euffclm. (& BifjcJio, Pad/, i?. Jxr}). IV, Cnd. ]). 28, 1 1, Syn. 

 Cact.iJ.lh. Var. spinosior: globosus; costis 13 compressisinterruptis; aculeis radialibiis 

 9-11, inferioribus saipe obscurio ribus, reliquis longioribus niveis, 2 superioi-ibns ssepe 



'This descriptiou lias been published iu Tiana. Acad. St. Lonis, vol. 'Z, p. 19'J (1863). It is rather strange tMt 

 neither this nor the above-mentioned E. papyracanthm has ever been found again (January, 187G). 



