L30 C0NTBIBUTI096 FROM Nil NATIONAL HERBARIUM. 



Oaxaca: On mountains northeast of Vallej of Oaxaca, I \v. tfeteon, 

 1904 no. 1665, type ; hills at Las Bedas, 0. G. Pringle, lugust 10, 

 also L897 no. 671 

 This species baa been confused with / », /.. carHnae, I'., btecheyanum, and 



/ ■ //./»'/. It has fruit similar to /.'. comotum, but different leaves, heads, and 

 It differs from the other three Bpecies in various ways, but especially in the 

 acuminate fruit scales. 

 Eryngium leptopodum Hemsley? 



Collected by J. N. Rose and .1"-. II. Painter, between Somoriel and Las Lajas, 

 Hidalgo, August 5, L905 nm. 9191 l. 



Eryngium monocephalum ( a\ . 



Collected by J. N. Rose and Jos. II. Painter in «>ak woods between Pachuca and 

 Real del Monte, Hidalgo, .Inly L9, 1905 no. 8692 



Eryngium serratum Cav. 



Collected by .1. N. Rose and .1"-. II. Painter at Hacienda Ciervo, between Ban 

 Juan del Rio and Cadereyta, Quere'taro, August 20, L905 no. 9684); on rocky banks 

 <<i stream near San Angel, Valley <>t" Mexico, August 15, P'<»"> (no. 9491 I; between 

 Somoriel and La- Lajas, Hidalgo, August 5, L905 (no. 9228 



Eryng-ium -p. 



Collected by J. N. Rose and Jos. II. rainier, between Somoriel and La- Lajas, 

 Hidalgo, August 5, L905 l no. 9190). 



PRIONOSCIADIUM, NEW AND OLD SPECIES. 



Prionosciadium diversifolium Rose. 



Collected by J. X. Rose and Jos. II. Painter, in Canon de la Mano Negra, near 

 [guala, Guerrero, August 11. L905 (no. 9336). 



Prionosciadium nelsoni Coult. & Rose. 

 Collected by J. N. Rose and Jos. II. Painter, in barranca near Cuernavaca, \ 

 - September 12 and 13, L905 I no. L0209 . 



Prionosciadium palmeri Etose, sp. nov. 



Perennials from deep— eat ed root-: stem -tout, about - meter- high, much branched; 

 basal leaves very large, twice ternate, then pinnately parted or lobed; main rachk 

 and secondary branches not at all winged; Leaf segments rather large, more or less 

 confluent, cuneate at base, obtuse, more or Less scabrous on the veins, especially 

 below; primary and secondary peduncles umbellate; umbel proper many-rayed; 

 rays stout, about :'. cm. Long; pedicels 2 to 3 mm. Ion-, involucre wanting; invol- 

 ncel bractlets minute; fruit oblong, L2 mm. long, glabrous, wings about a- broad 

 as body: "il tubes about :i in the intervals. 



Type b. S. National Herbarium no. 397608, collected by Dr. E. Palmer near 

 Alvarez. San Lnis Potosf, September"). 1902 (no. 61 



Perhaps nearest /'. />iin;//>i, but it is apparently a stouter plant, and has more 

 strongly toothed Leaves, glabrous fruit, etc. 



Prionosciadium palustre R 

 Collected by J. N. Rose and Jos. II. Painter, on pedregal near Yautepec, Morelos, 



.Inly 1l> and L3, 1906 no. 856 



Prionosciadium watsoni Coiilt. & I: 



CoHected by J. N. Rose and Joe. II. Painter, on Limestone hillside near [xmiquil- 

 pan, Hidalgo, July 7, L905 no. B964 ; hacienda Ciervo, between San Juan del Rio 

 and Cadereyta, Quer6taro, August 20, b»<>"> (no, 9640 . 



