from May 1, 1830, to April 30, 1840. 395 



" species of Epiphytes. Among the seeds there is a large paper of 

 " Berberis trifoliata collected in the neighbourhood of San Luis 

 " Potosi by the administrator of the Hacienda del Espiritu Santo, to 

 " whom I gave an order for it when passing through the latter place 

 " in April last. Amongst the roots there is a new species of Dahlia 

 " (D. repens mihi) growing in its wild state only one foot high, and 

 " it could perhaps be employed with effect to produce dwarf varieties 

 " if impregnated with the double kinds. The bulbs packed along 

 " with the Orchidaceae are those of a plant called ' Cebadilla ' 

 " growing on the ' Campanaria ' about 9500 feet above the level of 

 " the sea ; it has a beautiful brown scented flower, and the leaves 

 " bear a resemblance to Veratrum Sabadilla of which latter the 

 " above name is probably a corruption. Cattle eating the leaves 

 " die in consequence. The Orchidaccas are Oncidium tigrinum, 

 " and Bletia majalis (Schiede) the latter is the same kind as con- 

 " tained in box, U.S. 3. 



" On the 27th of last month I started from Anganguco for Real 

 " del Monte, for which place I was furnished with a letter of intro- 

 " duction to Charles Ehrenberg, Esq. who being an amateur 

 " botanist is giving me every information respecting localities that I 

 " am in need of. On the few excursions that I have made as yet I 

 " found seeds of Cotoneaster denticulata, a splendid Chelone, a spe- 

 " cies of Symphoria, Pinus patula (Schiede), and a few Mammillarias. 

 " I also found a new species of Abies (not hirtella) resembling 

 " Douglasii in cones ; Mr. Ehrenberg has never found it during 

 " his stay of five years here. There is also Pinus occidentalis and 

 " two other species or varieties of it ; one of them has remarkably 

 " long leaves, larger cones, and the squamae end in sharp points, 

 " the other has glaucous leaves and smaller brownish cones. Of all 

 " these I shall secure seeds when they are a little riper. From 

 " Morelia I sent in box H. S. 12, some Pine seeds under the name 

 " of P. occidentalis. I have now had an opportunity of seeing a 

 " specimen of it in Mr. Ehrenberg's herbarium; it had been col- 



