ROSE MEXICAN iND CENTRA] AMERICAN PLANTS. 127 



Echinocactus pringlei (Coulter Rose. 



Eehinocartw pUosus pringlei Coulter, Contr. Nat. Herb. 3: 



This species is very distinct from the true E. piloau*. Both are under cultivation 

 in Washington. 



APIACEAE. 

 INTRODUCTORY NOTE. 



In L905 was published a supplement' to Coulter and K< >se's Synopsis 

 of the Mexican and Central American LTmbelliferae. During the past 

 year so many new species have been found and so much interesting 

 materia] has come to hand that it seems best t<> publish the note- and 

 descriptions. 



ARRACACIA. NEW AND OLD SPECIES. 



Arracacia aeg-opodioides Coulter & Rose. 



Collected by J. N. RoseandJos. II. Painter, in oak woods between Pachuca and 

 Real del AI..ntc. Hidalgo, July 19, 1905 no. 8671 - rra de Pachuca, Hid a 



July -in. 1905 - between Somoriel and Las Lajas, Hidalgo, August ■">. L905 



(no. 9201 . 



Arracacia fruticosa Rose, sp. nov. 



A meter <»r more high, tin- stem woody, at least often so, tin- herbaceous parts 

 purplish and more or less glaucous, glabrous; basal and lower stem leaves ternately 

 decompound, 30 to 40cm. long, the ultimate segments -mall, ovate to lana 

 sharply toothed or more or less cleft, glabrous; upper stem leaves much reduced; 

 inflorescence much compounded, the rays often forming umbel-like clusters and 

 these sometimes again compounded; ray- 15 cm. or less long; involucre bracts and 

 involucel bractlets wanting; but the top and base of tin- ray- granulate; ray.- numer- 

 ous, about equal, 3 t" 4 em. long; pedicels '■> mm. long; flowers deep purple; fruit 

 1<> mm. 1 ing, smooth; carpels >tn>nL. r ly 5-angled; seed deeply concave on the face; 

 middle interval containing a single oil tube, the lateral intervals sometimes with two; 

 carpophores broad and thin: stylopodia small hut conical. 



Type I". S. National Herbarium no. 453625, collected by J. X. Rose and .1. II. 

 Painter near the base of the red hills east of Tehuacan, Puebla, September6 

 i no. L0125). In habit and especially in its frutescent stem this-: mbles 



the genus Coulterophytum, hut it has the fruit of a true Arracacia. 



Arracacia multifida B. Wats. 



Collected by J. X. Rose an-1 Jo-. H. Painter, near Tulancingo, Hidalgo, Tuly 22, 

 1905 no. s ^ ".4 ; on limestone hillside near Lxmiquilpan, Hidalgo, July 29, L905 

 (no. 9048 . 



Arracacia tenuifolia Rose, -p. nov. 



stilus 25 to 35cm. tail, glabrous throughout, somewhat branched above, naked 

 below; basal leaves large, ternately decompounded into linear, elongated, entire 

 segments; peduncles slender, 8 to 10 cm. long; rays few 3 to 10 , stout, 1 to 1.5 cm. 

 long; involucel bractlets several, minute, shorter than the pedicels; pedicels short. 

 1 to 1.5 mm. long; fruit ovate, 4 mm. long; Btylopodia slender-conical. 



Type r. 8. National Herbarium no. 4.v;l'<>n collected l«\ .: \ Rose and .1—. II 

 Painter on a ledge of a high cliff near Ctedereyta, Querltaro, August, 9719 . 



This species i- near A. muUifida, hut has -mailer and differently shaped bruit 



ntr. Nat Herb. 8: 331. 1905. 



