Iriartea.'] equatokial-americ^n palms. 135 



plant as inucli as 12 feet, and on a very lofty one not quite 2 feet) ; 

 the trunk proper 56| feet. The fruit-bearing spadix was placed 

 at a height of 45 feet from the apei of the cone, and 11| feet be- 

 low the lowest extant frond ; on the third ring above that was a 

 young decurved spadix exactly resembling a cow's horn, still 

 closely invested by the numerous spathes, the lowest of which 

 were beginning to fall away. Another interval of two rings, and 

 there was another spadix, but only half so long and more rudi- 

 mentary. Hence, as the fruit is ripened only once a year, it 

 seems that the fruiting spadix is of three years' growth. The 

 trunk was 8 inches thick near the base ; at about halfw ay up it 

 began to swell and form a belly, whose greatest thickness (20 

 inches) was a little above the lowest spadix. The belly sometimes 

 occurs lower down the stem, and is often much wider than in this 

 instance. On the Pacimoni I have seen canoes extemporized from 

 it, by splitting off lengthwise a little less than the half of it, hol- 

 lowing out the remainder, and stopping up the ends with clay. 



From the horn-like young spadices this palm is sometimes called 

 in Peru " Huacra-pona," or Horn Palm — a name, however, more 

 commonly applied to its congener, J. exorrhiza, which has the 

 same peculiarity. An analogous name, " Corneto," is given to 

 another species {L pubescent ^ Karst.) found in New Granada. 



% I. SETiGERA, Mart, Palm, 39, t, 37 : palma humilis (10-20- 

 pedalis) gracilis, tota superficie tomentella pubescensve, ad caudices 

 vaginasque etiam setosa^ foliis vix 5-pedaIibus pinnatis. pinnis 7-ju- 

 gis cuneiformi-rhomboideis apice prsemorsis ; spadicibus subbipeda- 

 libus, ramis pendulis ; spathis 3 (4-5 3Iart.) ; baccis obovato-cylin- 

 draceis incm'vo-gibbis miniatis. 



Hab, "in margiue fliunims Japura" (^3Iart /. c); in sylvis fluuiinum 

 Negro, Uaupes et Casiquiari, pra^cipue humilioribus subhumidis, 

 etiam ad flum. Amazonum supra fl. Negro ostia (S, hb. Palm, 4, J. 

 pmriens in mst. ; Wallace^ Palms, pi. 15) — Paxiitba-t Brasiliensium. 



Candices solitarii humiles (10-20-pedales), radicibus vix vel non exsertis 

 sparse muricatis suffulti, soboles proatratas apice adscendentes foliosas 

 proferentes, tenues, diametro l~2-pollicari, supeme sensim attenuati, 

 distanter aunulati, dense griseo-tomentelli et inter tomentum nigro- 

 setosi, setis deciduis et ad instar Mucunce prurientibus. 



Folia 4|-5-pedalia, pinnata, ambitu ovaliaj petiolus (vagina 9-ifclhcari 

 tereti subintegra dense setosa excepta) pedalis, teres, et rhachis to- 

 mentosa; pinnce 7-jug3e, basi lata semiverticali inserta), cuneiformi- 

 rhomboideae, apice preemorsse (laciniato-dentatse erosaeque), mollis- 

 pimse, supra pubendse, subtus tomentellae, venis sub 6 flabelliformi- 

 radiatis porcursae, obfccurc plicatse, mediae longiores 11 x3^-poIlicares. 



■^ r 



