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130 



CONTRTEliTTONS FROM THE NATIONAL HERBARIUM. 



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Sprcinirvs examined: 



Oaxaca: On niountaiiii^ iiorthGa.st of Valley of Oaxaca, E. W. Nelson, October 3, 

 1904 (no. 1565, type); liilU at Las Sedas, C. O. Pringle, August 16, 1894; 

 also 1897 (no, 6710). 



This species has been confupod witli K comosum, K. earlinae, K heeclicyanum, an<l 

 E. ivrUjIdii It has fruit similar to E. comosiua, but different leaves, heads, and 

 bracts. It differs from the other tliree species in various ways, but es])ocial]y in the 

 acuminate fruit scales. 



Eryngium leptopodum Ilcmsley? 



Collected by J. N. Rose and Jos. H. Painter, between Somoriel and Las Lajas, 

 Hidalgo, Augusts, 1905 (no, 9191). 



Eryngium monocephalum Cav. 



Collected by J. N. Rose and Jos. 11. Painter in oak woods l)etween Pachuca and 

 Real del Monte, llidal^^^o, July 19, 1905 (no. 8692), 



Eryngiuni serratum Cav. 



Collected by J, N. Rose and Jos. II. Painter at llat'ienda Ciervo, between San 

 Juan del Rio and Cadereyta, Queretaro, August 20, 1995 (no. 9684); on rocky banks 

 of stream near Sati Angel, Valley of :\rexico, August 15, 1905 (no. 9491); between 

 Somoriel and Las Lajas, Hidalgo, August 5, 1905 (no, 9228). 



Eryngium sp. 



Collected by J. N. Rose and Jos. IL Painter, betwee]i Somoriel and Las Lajas, 

 Hidalgo, August 5, 1905 (no. 9190). 



PRIONOSCIADIUM, NEW AND OLD SPECIES, 



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Prionosciadium diversifolium Rose. 



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

 Iguala, Guerrero, August 11, 1905 (no. OS.'iO), 



Prionosciadium nelsoni Coult. A: Rose, 



Collected by J. N, Rose and Jos. IL Painter, in barranca near Cut-rnuvacaj More- 

 los, September 12 and 11], 1905 (no. 10209). 



Prionosciadium palmeri Rose, sp. nov. 



Perennials from <leep-seated roots; stem stout, about 2 meters high, much branched; 

 basal leaves very large, twice ternate, then pinnat<^]y parted or lol)ed; main rachis 

 and secondary brandies not at all winged; leaf segments rather large, more or less 

 confluent, cnneate at base, obtuse, "more or less scabrous on the vuins, especially 

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

 rays stout, about 3 cm. long; pedicels 2 to 3 mm. loiig, involucre wanting; invol- 

 urel bructlets minute; fruit oblong, 12 mm. long, glabrous, wings about as broad 

 as body; oil tubes about 3 in the intervals. 



Type V, S. National Herbarium no. 897608, collected by Dr. K. Palmer near 

 Alvarez, San Luis Potosf, September 5, 1902 (no. 60). 



Perhaps nearest /'. pringld, but it is apparently a stouter plant, nnd has more 

 strongly toothed leaves, glabrous fruit, etc. 



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Prionosciadium palustre Rose. 



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

 July 12 and 13, 1905 (no. 8563.) 



Prionosciadium watsoni Coult. & Rose. 



Collected by J. N. Rose and Jos. IL Painter, on limestone hillside near Ixmiquil- 

 pan, Hidalgo, July 7, 1905 (no, 8964); Hacienda Ciervo, between San Juan del Rio 

 and Cadereyta, Queretaro^ August 20, 1905 (no. 0640), 



