1459 Erigeron divergens, T. & G., var. 
cinereus, Gray. 
1273 AchcBtogeron Seeuianni, GrayV 
1276 Wislizeni, GrayV 
1277 affinis, Gray. 
1274 Conyza gnaphalioides, HBK.? 
1278 Xanthocephalura sericocarpum, Gr. 
1279 conoideum, Hemsl. ? 
1280 Wrightii, Gray. 
1281 Guardiola Tulocari)us, Gray, var. 
1282 Jagaeria calva, Schultz Bip. 
1283 Siegesbeckia orientalis, L., var. 
1284 Ambrosia canescen.s, Gray. 
1285 Verbesina stricta, Gray. 
1286 lougifolia, Gray. 
1287 Bideiis teuuisecta, Gray. 
1288, 1289 heterosperma, Gray. 
1290 odorata, Cav. 
1291 inermis,W(itHon , n. sp. 
1292 ScJikahrin Pringlei,WatH(>n, n. sp. 
1293 Ilymenothrix glandulosn, Wats.., n.sp. 
1294 Hynieuatherum Neo->Iexicanum,Gr. 
1295 Sahazid glabrn, Watsmi, h. sp. 
1296 Pectis aqitaticd, Watson, n. sp. 
1297 Tdgetes Pringlei, Watson, n. sp. 
1298 Cosmos parviflorus, HBK. 
1299 scabiosoides, IIBK. 
1300 Aplopappus niveus, Watson, n. sp. 
1302 Helianthella Mddrensis,Wdts., n. sp. 
1303 Aplopappus teuuilobus. Gray. 
1304 Sanvitalia tennis, Watson, n. sp. 
1305 Lepaeliys Mexicdna,Wntson, n. sp. 
1306 Cuicus ochroccntrus. Gray. 
1307 Perezia Wislizeni, Gray. 
1308 Ilymenopappus Me.xicanus, Gray. 
1309 Artemisia dracunculinn, Wats., 7i. sp. 
1311 Berlandiera lyrata, Benth., var. mac- 
rophylla, Gray. 
1312 Chaptalia Seemauiii, B. & H. 
1313 Ilieracium Schultzii, Fries, form. 
1314 Schultzii, Fries. 
1315 carneum, Greene. 
1316 Seneeio umbraetdif era, Wats., n. sp. 
1317 Ilartwegi, Benth. 
1318 Chihunhuensis, Watson, n.sp. 
1319 Iluachucanus, Gray. 
1450 Baccharis Wrightii, Gray. 
1453 heterophylla, IIBK. 
1457 Lobelia laxiHora, IIBK., vai-. an- 
gustifolia, DC. 
1320 gruina, Cav. 
1321 Arbutus Xalai)ensis, IIBK. 
1322 jtetiolaris, IIBK. ? 
1323 Pherotrichis Balbisii, Gray. 
1451 Asclepias ovata. Mart. A Gal. 
1455 Gonolobus uniflorus, IIBK. 
1324 Philibertia cyiianchoidcs, Gray. 
1325 Philibertia elegans. Gray. 
1326 undulata. Gray. 
1328 Gentiana Wislizeni, Engelm. 
1329 Ilalenia Rothrockii, Gray. 
1330 parviflora, Don. 
1331 Gilia glomeritiora, Benth. 
1332 floribunda. Gray. 
1333, 1334 Phlox nana, Xutt. 
1336 Buchnera pilosa, Benth.? 
1337 Ipomaa leptosiphon,Watson, n. sp. 
1338 Madrensis, Watson, n. sp. 
1339 Lindheimeri, Gray. 
1340 capillacea, Don. 
1311 Breweria rotundifolia,Watson, n. sp. 
1843 Bellinia umbellata, R. & S. 
1344 Physalis pubescens, L. 
1345 Pentstemon barbatus, Nutt., var. 
Wislizeni, Gra 3 ^ 
1316 barbatus, Nutt., var. Torreyi, 
Gray. 
1347 Mimulus glabratus, IIBK. 
1348 Conobea intermedia. Gray. 
1319 Veronica Mexicnna,W atson, n. sp. 
1350 Castilleia tenuiflora, Benth., var. 
1351 Gerardia pedicularia, Benth. 
1352 Seymeria bipinnatisecta. Seem. 
1353 Pedicularis angustifolia, Benth. 
1456 Dicliptera peduncularis, Nees? 
1354 Priva hispida, Juss. 
1355 Mouarda citriodora, Cerv. 
1356 Corrigiola andina, Trian. & Planch. 
1357 Eriogonum atrorubeus, Eng., var. 
1358 Phoradeudron juniperinum, Engelm. 
1359 Euphorbia PlummertE, Watson. 
1360 serpens, HBK., var. 
1361 Quercus fulva, Liebm. 
1362 hypoleuca, Engelm. 
1363 Juuiperus tetragona, Schlecht. 
1448 Pinus macrophylla, Engelm. 
1364 Phytolacca 
1365 Rotala Mexicaua, Ch. & Sch. 
1366 Tillcea vmdis, Watson, n. sp. 
1367 Sagittaria graminea, Mx., f. acuti- 
folia, Pursh. 
1368 Lilsea subulata, IIBK. 
1369 Microstylis Pringlei,Watson, n. sp. 
1370 montana, Rothr. 
1371 crispata, Reich, f. 
1372 Spiranthes Madrensis, B. & II. 
1373 ? 
1374 Ilabenaria brevifolia, Greene. 
1375 Schaff neri, Watson, v. sp. 
1376 Sisyrinchium Schaffneri, Watson. 
1377 tenuifolium, IIBK. 
1380 Ilyitoxis decumbens, L. 
1381 Bravoa singulijlora, Watson, n. sp. 
1382 Calochortus Madrensis, Wats. , n. sp. 
