40 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Type in the U. S. National Herbarium, no. 451192; collected on a shaded mountain 

 side near Etzatlan, State of Jalisco, Mexico, October 2, 1903, by J. N. Rose and Joseph 

 II. Painter (no. 7582). Other specimens examined are as follows: 



Mexico: Exact locality wanting, States of Coahuila and Nuevo Leon, February 

 to October, 1880, Edw. Palmer 1435 (N).« Southwestern Chihuahua, August 

 to November, 1885, Edw. Palmer 117 (N, G). Baranca near Guadalajara, 

 State of Jalisco, June, 1886, Edw. Palmer 79 (N, Y, M, E, G); Rose & Painter 

 7501 (N). Durango and vicinity, April to November, 1890, Edw. Palmer 555 

 (N, Y, M, G). Wet shady banks near Guadalajara, State of Jalisco, Decem- 

 ber 1, 1888, Pringle 1838 (N, M, E, P). Wet ledges, rocky hills near Chi- 

 huahua, State of Chihuahua, October, 1885, Pringle 444 (N, Y, M, E, G, P). 

 Damp cool shade, Huchuerachi, State of Sonora, C. E. Lloyd 491 (N, G); 

 altitude 1,200 meters, Hartman 319 (N, Y, G). Nacori, State of Sonora, alti- 

 tude 1,725 meters, Hartman 293 (G). El Fortin, State of Oaxaca, altitude 

 1,600 meters, Conzatti 701 (G). Mountains near San Migueltto, San Luis 

 Potosi, Schaffner 917 (E). Near Ixmiquilpan, State of Hidalgo, Rose, Painter 

 & Rose 8931, 9051. 

 Guatemala: Coban, Department of Alta Verapaz, altitude 1,260 meters, Septem- 

 ber, 1885, von Turckheim 714 (Y). Department of Peten, R. Walker (J. D. S. 

 1154) (N). 

 The present species was first collected apparently by Dr. Edward Palmer, for whom 

 the writer has had pleasure in naming it. Specimens collected subsequently by Dr. 

 C. G. Pringle were listed by Mr. Davenport as Asplenium trichomanes var. repens 

 Davenp., a new form b which Mr. Davenport thought possibly the same as the Cuban 

 A. heterochroum, which had been reduced by Hooker and subsequent writers. From 

 this, which in the light of recent collections must be regarded as a valid species, 

 A. palmeri may be distinguished at once (as from all the species of this group) by its 

 prolonged naked apex, which bears a proliferous bud at the apex, producing occasion- 

 ally young plants up to 2.5 cm. in height. Nearly all the fronds are fertile; the pinna; 

 are somewhat coriaceous with the margins more or less inflexed, the marginal serrations 

 sharply acute and distinct. 



Cyathea crassa Maxon, sp. now 



Caudex erect, 3 to 8 meters high, spiny; stipe undescribed ; rachis (at least in the 

 upper part) castaneous, polished, glabrous; pinme dark green above, paler below, 

 coriaceous, oblong to deltoid-lanceolate, 40 to 60 cm. long, 15 to 22 cm. broad, sessile, 

 with about 16 to 20 pairs of pinnules below the abruptly acuminate apex, the secondary 

 rachis brownish castaneous, glabrous and shining on the under surface, above deeply 

 sulcate, minutely dark pilose, and with a few scattering minute castaneous stellate 

 scales; pinnules contiguous or slightly apart, oblong to deltoid-oblong, 8 to 11.5 cm. 

 long, 2 to 4 cm. broad at the base, sessile or essentially so, cut nearly or quite to the 

 costa, the apex long-acuminate, serrate-erenafe; segments 13 to 17 pairs, approximate 

 or slightly apart, oblong, subfalcate, slightly oblique, obtuse, mostly adnate, the mid- 

 dle and lower ones decurrent, only the basal ones sessile, these the largest (up to 2 cm. 

 long and 8 mm. broad), deeply inciso-pinnatifid (the lobes pinnately veined, some- 

 times with 2 basal sori), those above deeply inciso-crenate, the uppermost dentate- 

 serrate; costse, costuhe, veins and surfaces glabrous below; veins (excepting those of 

 the basal segments) 1 to 3-forked, 6 to 8 pairs, mostly fertile; sori near the costule, 

 large, distant; indusium castaneous, deeply hemispherical, rigidly coriaceous, per- 



a As in previous papers, E refers to the D. C. Eaton Herbarium, G to the Gray Her- 

 barium, N to the U. S. National Herbarium, M to the Missouri Botanical Garden 

 Herbarium, P to the C. G. Pringle Herbarium, and Y to the herbarium of the New 

 York Botanical Garden (Underwood Herbarium). 



&Bull. Torr. Club 13: 130. 1888. 



