FLORA OF NOKTH-TVjESTEIlN MEXICO. 315 
L 
Subgenus IL Maceocephal.^, Sz, Bip. Capitula multiflora, poUicem circ. longa; involucrum valde 
inibricatum, folia coriacea. 
408. Trixis turhinata, Sz. Bip. m^.—Perezia turbinata, Lai. et Lex. Nov. Gen. Veg. vol. i. p. 
25.— A. Gray! Pi. Wright, vol. i. p. l2Q.—Acourtia fonnosa, Don (uon DC.) Trans. Linn. Soc. 
vol. XVI. p. %Q4.,~Acourtia macrocephala, Sz. Bip. in lit. ad cl. Seem. (Tab. LV.) Ilerbacea, gla- 
berrima, caule apice capitulis paucis (5) speciosissimis, 1^ poll, diametro met. tcrminato, foliato, 
folns conaceis, lanceolatis, falcatis, cordatis, acutis, dcutato-spinosis. Sierra Madrc (n. 203 i). 
6b8. Lai. et Lex. 1. c, folia ovata describimt ! Cum cl. Gray ! 1. c, plants nostra specioaiBsimffi, invo- 
ucro exquisite turbmato iustruct^e, pappi radios apice vix incrassatos vidi non two peuiclllatos ut C. Don 
1. c. asaerit. An plures species confusce ? 
PLiTE LV. Fig. 1, portion of lower stem ; t, reeeptaculum ; 3, eoroUa ; 4, antbcrs ; 5, an entire flower ; 
6, ban: of the pappus ; 7, pistil -.—all, with the exception of 1 and 2, magnified. 
Subgenus IIL PoLTCEPHALiE, Sz. Bip. ms. Capitula mediocria, 8-12-fiora, in paniculam corymbosam 
polycepbalam disposita. 
409. Trixis Seemannii, Sz. Bip. ms.~Perezia Seemannii, A. Gray ! PI. Wright, vol i p 127 — 
Aconrtia Seemannii, Sz. Bip. in lit. ad cl. Seem. {Tab. LIV.) Herbacea, rigida, gl aberrini a/panicu- 
lato-ramosissima, polycephala, foHis. eoriaceis, confertis, cuneato-oblongis, acntiusculis, inferne inte- 
gris, ceterum spinuloso-dentatis, rameis, rainiinis, obovato-oblongis, intcgris, mucronatis. (Species 
distmctissima, capitulis 12.floris, acbjeniia papUloso-scabris, 2 lin. longis, pappo denticulato, 4 lin. 
longo.) Sierra Madre (n. 2033). 
Plate LIV. Pig. 1, portion of the lower stem; 2, an entire capitulura; 3, reeeptaculum; 4, upper 
part of corolla; 5, an entire flower; 6, stamen; 7, ovary; 8, stigma; 9, hair of pappu. :-«//, with the ex- 
ception of fig. 1, magnified. 
410. Trixis patens, Sz. Bip. ms.—Perezia patens, A. Gray ! PI. Wright, vol. i. p. 127. excl. var. 
--Acourtia formosa, Sz. Bip. in lit. ad cl. Seem. (Tab. LVL) Herbacea?, glaucesccns, glabcrrima, 
patenti-ramosissima, ramis corymbosis, foliis oblongis, cordatis, apice rotundatis, omnibus conferte 
spinulosis. Sierra Madre (n. 2032) . 
Obs. Acourtia formosa, DC. Prod. vol. vii. p. QQ, se6. diagnosin hue spectare -iddetur, licet amic. Gray, 
I.e. p. 12G, earn cum Perezia (JFrixide fruticosa, Sz. Bip., ms.) fruticosa, Lai. Lex. Nov. Veg. vol. i. p. 26, 
jungat. Cl. Lai. et Lex. nempe P.fmticosm attribuunt capitula confertiasima, involucrum cylindraceum, 
caulem pui-purascentem, folia subrotunda, fioralia edentula. Nostra vero habet capitula vix contigua 4-8 
ad ramorum apicem pedicellis gracilibus, iis pi. longioribus, insidentia, inv6lucrum ovato-hemisphtcricuni, 
folia oblonga, subEequilata, obtusa, etiam gumma crebre spinuloso-dentata. 
Plate LVL Pig. 1, reeeptaculum ; 2, corolla ; 3, an entire flower ; 4, stamen ; 5, pistil ; 6, stigma ; 7, 
hair of pappus : — all magnified. 
L0BEL1ACE.E. 
411. Lobelia Hartwegi, Benth., De Cand. Prodr. vol. vii. p. 361.— i. vehtina, Mart, et Gall 
T\lprs. Rep. vol. ii. p. 707 ! Sierra Madre. 
My specimens are more glabrous than those of Hartweg. 
2 R 2 
