RUBIACEZ. 
OLpENLANDIA (Hovsronra) HUMIFUSA, Gray, Pl. Wright. 2, p. 68. On the Llano Estacado and 
Pecos; March. A vernal state. 
OLDENLANDIA ANGUSTIFOLIA, Gray, l. c. Fort Washita and Western Texas; April, May. 
Gatrum Aparing, Linn. On the Colorado; April. Not in flower. 
VALERIANACEA. 
Frpia AMARELLA, Lindh. in Gray, Pl. Lindh. 2, p. 217. On the Colorado, &c., Texas; April, 
May. 
COMPOSIT A. 
Macu#rantuera Tanacertroura, Nees; Gray, Pl. Wright. 1, p.90. On the Llano Estacado 
and Western Texas; March to May. 
Errerron staicosum, Muhl.; Torr. and Gray, Fl. 2,p. 176. Near Fort Washita; April. 
Errcrron pivercens, Zorr. and Gray, l. c.; Gray, Pl. Wright.1,p. 91. From the Pecos to 
the Colorado, Texas. Various forms. 
DrpLopappus ERicorpEs, Zorr. and Gray, Fl. 2, p. 182, New eae to the Colorado; March, 
April. Various forms. 
TowNsENDIA sERICEA, Hook, Fl. Bor.-Am. 2, p. 16, t. 119. Guadalupe mountains, New Mex- 
ico; March. 
Cumtopappa asteroipes, DC. Prodr. 5, p. 301. Western Texas; April, May. 
ApmltaNosTePHus RAMosIsstmus, DC. Prodr. 5, p. 310; Gray, Pl. Wright. 1, p. 93; Torr. in 
Marcy’s Rep. t.9. Big Springs of the Colorado; April. 
ApHanosterHus ARKANSANUS, Gray, l.c. Western Texas; May. 
Betis intecRIFoLIA, Michx. Fl. 1, p. 131. Western Texas; May. 
Aptopappus sprnuLosus, DC. Prodr. 5, p. 348. From the Pecos to the Colorado, Texas. 
Xantatsma Texanum, DC. Prodr. 5, p. 94; Gray, Pl. Wright. 1, p. 98; Torr. in Marcy's 
Rep. t. 10. Western Texas, May. 
Sotrpaco Canapensis, Linn. Near Fort Washita; April. Not in flower. 
CALYMMANDRA cAaNpipA, Zorr. and Gray, Fl. 2, p.:262. (Plate II.) Western Texas, on the 
upper Colorado; April. This has scarcely been collected since it was gathered by Drummond. 
Frnacrnopsis Mutticauuis, Torr. and Gray, Fl. 2, p. 263. (Plate ITI.) On the Pecos and Llano 
Estacado; March. Western Texas; April. Sterile corollas, naked at the summit, but bearing 
a few long wooly hairs near the base. 
PartHentumM Hysteropnorvs, Linn. Pecos and Llano Estacado. 
MeLaAmpopium crnerEuM, DC. Prodr. 5, p. 518. Banks of the Pecos to the Colorado; March 
to May. 
BERLANDIERA LYRATA, Benth.; Gray, Pl. Fendl. p. 78. Llano Estaeado, March. 
ENGELMANNIA PINNATIFIDA, Zorr. and Gray, in Trans. Amer. Phil. Soc. and Fl. 2, p. 283; 
Torr. in Marcy's Rep. t. 11. Western Texas to the head of the Colorado; April, May. 
LinpuermeriA Texana, Gray and Engelm. Pl. Lindh. 2 p. 225. Western Texas; April. 
ZINNIA MULTIFLORA, Linn. Near Fort Chadbourne, Texas. 
EcuINACEA ANGUSTIFOLIA, DC. Prodr. 5, p. 554. Var. Western Texas; April. 
Siusta (Barrattia) catva, Gray, Pl. Lindh. 2, p. 228. On the upperéColorado; April. 
DRACOPIS AMPLEXICAULIS, Cass.; DC. Prodr. 5, p. 558. Near Fort Washita; April. 
