626 PROCEEDINGS OF THE AMERICAN ACADEMY, 
obscurely serrate, acute or acuminate: filiform pedicels 7 to 16 mm. long; 
heads numerous, in leafy-bracted corymbs, few-flowered: rays 5 to 8, 
oblong, 7 mm. long. — Sth. Bip. in Klatt, 1. c. — Sta. Talca, Liebmann, 
no. 374; also near Totontepec, altitude 1,100 to 1,700 m., #. W. Nelson, 
no. 783. Type in herb. Bot. Gard. Copenhagen; a fragment in herb. 
Gray. Perhaps a form of the next. 
14*. P. Gracite, Hemsl. From description very like the last pre- 
ceding but leaves said to be sometimes as much as 1 dm. in length (more 
than 3 times the size of any noted in P. microcephalum) : pedicels 1.2 
to 2.5 cm. long. — Biol. Cent.-Am. Bot. ii. 181. — San Cristobal, Orizaba, 
Bourgeau, no. 3206. Not seen by the writers. Type in herb. Kew. 
= = Heads larger; involucral scales ciliate. 
a. Leaves green and scarcely paler beneath, scabrous-pubescent upon 
bot aces. 
15. P. Pringlei. Shrub, scabrous throughout ; branches and pedun- 
cles strigillose with minute appressed white hairs: leaves large (6 to 
11 em. long, 2 to 4 cm. broad), subentire to coarsely serrate-dentate, 
reticulate-veiny beneath; petioles 1 to 2 cm. long: pedicels filiform, sub- 
umbellate at the ends of the branches, 2 to 8 cm. long; involucral scales 
ovate to ovate-oblong: ligules about 8, pale yellow, 5 mm. long. — Slopes 
of cafions near Guadalajara, Jalisco, C. G. Pringle, 11 October, 1889, 
no. 2338 (distrib. as P. Mendezii?). 
16. P. Gymnotomormes, DC. Shrub with tetragonal strigillose 
branchlets: leaves ovate-lanceolate, entire, attenuate, acute, rounded at 
the base, 5 em. long, 1.5 to 1.7 cm. broad ; petioles 3 mm. long: corymbs 
few(3-5)-headed; pubescence of the pedicels spreading ; involucral 
scales broadly ovate, rounded at the ciliated summit: achenes narrowly 
or sometimes obsoletely winged, upwardly ciliated.— Prodr. v. 609; 
Klatt, Leopoldina, xx. 95. Lipotriche gymnolomoides, Less. Linnea, 
vi. 408. — Mexico, Misantla, Schiede & Deppe, Mirador, Sartorius ; 
Guatemala, in copses near Coban, Alta Vera Paz, von Tuerckhevm, 
no. 339. 
17. P. rude. Shrub, 1 to 2 m. high, scabrous throughout: leaves 
ovate, acutish, serrate, rounded or subcordate at the base, 2.5 to 3./ cm 
long, 1.5 to 2 em. broad: heads corymbose or subumbellate by 3’s oF ?* 
at the summit of short or sometimes elongated peduncles; pubescence 0” 
_ pedicels strigose, appressed; involucral scales in 2 to 3 series, broadly 
ovate: ligules 8 to 10, oblong, bright orange, 7 to 9 mm. long — Hills 
of Oaxaca, at Las Sedas, C. G. Pringle, no. 4803 (distrib. as P. gy” 
