ICONES PLANTARUM. 15 
exserta v. inclusa quasi rostrata.—Herbe elate, glabra v. scabro-puberule. 
Folia opposita, subserrata. Capitula se in glomerulis capituliformibus 
pauca sessilia, glomerulis corymboso-paniculatis 
D. perfoliatum, Benth. sp. nov.; foliis ovato- Janceolatis basi auri- 
culato-dilatatis connate, eae glomerulis numerosis late corymboso- 
paniculatis 
Has. Mexico; in the province of Oaxaca, at an elevation of 4500 feet, 
Galeotts, a. 2050. 
a fide Galeotti perennis, erecta, elata, glaberrima v. ramis paniculz 
linea gostenty pilorum pubescentibus. Folia inferiora desunt, superiora 
ovato-lanceolata acuminata parce serrata infra medium contracta, basi 
dilatata et auriculis latis connata, utrinque viridia, supra nitidula, 3-5 poll. 
longa, triplinervia, summa minora. pitulorum glomeruli depresso-globosi, 
cirea 3 lin. diametro, in panicula lata trichotoma numerosissimi. Capitula in 
lomerulo 6-10, 14 lin. longa. Flores fceminei in capitulo 1-2, hermaphro- 
diti steriles ad 4. 
Fig Cluster of flowerheads. 2. ear’ = enclosed in the bract. 8. Fem 
oe aun the bract. 4. Disk-floret. of its stamens. 6. Summit of om 
style. 
The following second species of the genus is in Herb. Hook., the speci- 
mens not very “good a s to the flowers, but sufficient to show the same 
structure as in D. perfoliatum. 
D. ovatum, Benth. sp. nov. ; foliis breviter petiolatis late ovatis, 
capitulorum glomerulis paucis subcorymbosis. 
Has. Mexico: woods of the province of Oaxaca at an elevation of 
7000 to 8000 fect, Galeotti, n. 2081 ; on the mountain San Felipe, dudrieuz, 
Herba fide Galeotti annua, erecta, elata, parum ramosa, caule glabro. Folia 
late ovata, irregulariter serrato-crenata, 13— 3-pollicaria, basi in petiolum 
evem ad i ee nervia ili 
caulem haud dilatatum contracta, Bn peta cte ilis 
minutis age scabra, _ pallidiora labra. Capitu iin 
speciminibus 3, ad apicem pedunculi longi pedicellati, sgl, 3 lin. 
1 G. 
diametro. Capitula in ~ lommials 6-8. Involucri 4ractee atee.— 
BenTHAM. 
