-55 mustard, 22 wrong th TO BOTANISTS. I take pleasure in sending these lists of interesting plants to the Botanists of the U. S. and of Europe. The same care has been taken to keep the present collection up to the standard of that of 1878, in point of quality; and in quantity much more material has been added to make the sets fully equal to those of our best collectors. To those who have secured my large Colorado collection of 1878 these plants will prove valuable additions. The 150 additional species of this year will bring the whole Colorado list up to 1100 species. To these I now add over 500 species of Utah plants. Both lists (of 1879) contain nearly 15 new species and about 150 not reported from those sections before. I have left but two full sets of the Colorado collection of 1878, containing 800 species. The Utah plants are put up in sets of 400 species, and the additional Colorado plants in sets of about 100 species. All plants starred are not in the sets, from lack of enough material, there being from 1 to 10 specimens each. Of these as well as the rest botanists can make selections, and their wants will be supplied as far as possible. All specimens are first-class, except those otherwise noted in the list. It is probable that most of the doubtful plants will prove to be new species. Prof. Watson has not yet reported on the plants sent him, and therefore some are still in doubt. But notice will be given if corrections are made. I have followed the latest and best authorities in the arrangement of species in their natural order. The additional Colorado species were secured during May, June, and a part of July. The Utah plants between July 18th and Sept. 1st. I am very greatly indebted for the unusually large and interesting list of Utah and Colorado plants to the courtesy and generosity of the Supt. of the Union Pacific R. R., to Mr. A. A. Ball, Genl. Ticket Agt. of the Colorado Central R. R., to John Risley of the D. & R. G. R. R., to Mr. Sharp, Supt. of the Utah Central and Utah Southern R. R., and to J. G. Kennedy and G. M. Young of the Wabschat and Bingham Canon R. R. Had it not been for the interest which the managers of these railroads take in the exploration and development of the far West, its natural resources would still be, to the world at large, unknown and valueless. And I am glad to bear testimony to the liberality which they are ever ready to extend to scientists seeking to make known the resources of the West. It is my intention to give another full season to the exploration of the plants of the little known section of southern Utah; and I expect to add 1000 species to the present Utah list. Hoping that these lists will interest you, I am respectfully yours, MARCHUS E. JONES, A. M. Grinnell, Poweshiek Co., Iowa. FLORA OF UTAH. First Fascicle. COLLECTED BY MARCUS E. JONES, A. M. 1351 Clematis Douglassii, Hooker. (Fruit.) -1350 Anemone multifida, DC. (Fruit.) 1194 Thalictrum Fendleri, Eng. 1025 Ranunculus Cymbalaria, Ph. adonens, Gray. 1130 affinis, R. Br., var. leiocarpus, Trautv. 1298 macranthus, Scheele. 1348 Aquilegia flavescens, Watson. 1349* formosa, Fisch. = Cærulea 1212 cærulea, James. 1154 Delphinium elatum, L., var.? occidentale, Watson. 1175 Æonitum Fischeri, Reich. 1429* Actæa spicata, L., var. arguta, Torrey. (Fruit.) 1084 Berberis repens, Lindley. (Fruit.) 1197 Corydalis Cascana, Gray. 1357 Draba Caroliniana, Walt., var. mierantha, Gray. 1211 aurea, Yahl. -1356* Douglassii, Gray. - alpina 1233 alpina, L., var. algida, [Regel.] 1251 Cardamine cordifolia, Gray. (Fruit.) 1177 Arabis Drummondii, Gray. Lyallii, Watson. 1248* Caulanthus hastatus, Watson. 1353 Erysimum asperum, DC. 1353* Brassica alba, Gray. 1037 nigra, Benth. & Hook. -1432* Baronca vulgaris, Br., var. stricta, Gray. 1192 Sisymbrium incisum, Eng., var. filipes, Gray. -1117 var. Hartwegianum, Wat. 1236 Smelowskia calycina, C. A. Meyer. -1198 Nasturtium obtusum, Nott. -1352 palustre, DC. - sternatum 1047 officinale, R. Br. 1354* Vesicaria montana, Gray. 1431 Capsella Bursa-Pastoris, [Moench.] 1215 Thlaspi alpestre, L. 1430 Lepidium intermedium. [Gray.] 1270 montanum, Nutt., var. alpinum, Watson. 1316 Cœomea integrifolia, T. & G. 1364* Viola palustris, L. 1359 Saponaria Vaccaria, L. 1360* Sticna aculeata, L. 1342 Meaziesii, Hooker. 1120 Douglassii, Hooker. -1372 Lychnis Ajanensis, Regel.? = Silene Drummondii, Watson. 1361 Meyeri 1279 Stellaria umbellata, Turez. 1098 humifusa, Rottbœll. 1203 Kingii, Watson. Arenaria 1160 var. hirta Jamesii, Torrey. -1363* Arenaria verna, L. 1433* aretica, Stev., var. obtusa, Torr. & Gr. -1362 Sagina Linnei, Presl.? 1088 Spergularia media, Presl. 1366 Portulaca oleracea, L. 1435 Malva rotundifolia, L. 1365* Sidaæea malvæflora, Gray. 1015 Malvastrum coccineum, Gray. 1085 Sphæracea acericfolia, Nutt. 1007 Sida hederacea, Torrey. 1121 Linum perenne, L. 1112 Kingii, Watson. 1173 Geranium Richardsonii, [Fisch. & Mey.] 1026 Erodium cicutarium, L'Her. 1083 Pachystima Myrsinites, Raf. Ceanothus velutinus, Torrey. 1437 Acer grandidentatum, Nutt. 1436 glabrum, Torrey. (Fruit.) 1438* Negrundo aceroides, Mœench. (Fruit.) -1187 Lupinus parviflorus, Nutt. = argophyllo 1439 laxiflorus, Dougl. - argyrophyllus 1439a* argentens, Pursh. - laxiflorus 1441 Trifolium repens, L. 1442 pratense, L. -1347 Trifolium involucratum, [Willd.] 1046 pauciflorum, Nutt. 1010 Melilotus alba, Lam. 1031 Medicago sativa, L. 1440* denticulata, Willd. 1055 lupulina, L. 1368 Astragalus Canadensis, L. 1443 Utahensis, T. & G. 1210 (Undescribed. New?) 1127 Kentrophyta, Gray. 144 Vicia mierantha, Nutt. 1445 Lathyrus polymorphus, Nutt. 147 Prunus demissa, Walpers. (Fruit.) 1446 Virginiana, L. 1142 Spiræa discolor, Pursh, var. dumosa, Watson. 1301 cespitosa, Nutt. 1448 Neillia Torreyi, Watson. 1449 Rubus strigosus, Mx. (Fruit.) 1450 Prunus tridentata, DC. (Fr.) 1451 Cercocarpus ledifolius, Nutt. (Fruit.) 1452 Geum strictum, Ait. 1264 Rossii, Seringe. 137 Fragaria Virginiana, Ehrh., var. glauca, Watson. 1108 Potentilla glandulosa, Lindl. 1454* rivulis, Nutt., var. millegrana, Watson. 1371 Pennsylvanica, L., var. stri-gosa, Pursh. 1227 gracilis, Dougl.? 1453 Anserina, L. 202 fruticosa, L. 1237 Sibbaldia procumbens, L. 1113 Ivesia Gordoni, T. & G. -1231 New? Near to ungulata-lata, Gray. J. Williamson 1455 Rosa blanda, Ait. (?) 1369 Pirus sambucifolia, Cham. & Schil. 1076 Cratægus rivularis, Nutt. (Fruit.) -1373 Saxifraga cespitosa, L. Plants marked with a star are not in the sets. HARVARD UNIVERSITY HERBARIUM. THE GIFT OF