BOTANY. 177 
Festuca TENELLA, Willd. Enum. 1, p.116. High sandy plains northeast of the Pecos, and 
head-waters of the Colorado; March to April. 
FrEstuca MAcRosTacuyA, (n. sp.) On the Pecos. This is one of numerous ernst of 
Texas and New Mexico. 
Horpeum pustitum, Nutt. Gen. 1, p. 87; Kunth, Enum. 1, p. 457. Sandy soil; Llano Esta- 
cado; March. 
fthinens Canapensis, Linn.; Kunth, Enum. 1, p. 457. Near Fort Washita. 
FILICES. 
ApIaAntuM Caprttus-Venzris, Linn. Big Springs of the Colorado. We follow Hooker in 
uniting this and several other allied forms of Adiantum 
Nornocuizna stnvata, Kaulf. Between the Rio Grande and Llano Estacado. 
GYMNOGRAMMA TARTAREA, Desv. With the preceding. 
CHEILANTHES LINDHEIMERI, Hook. Spec. Fil. 2, p. 101, ¢. 107. Llano Estacado. This is the 
same as No. 2126 of Wright’s New Mexican collection. 
Preris (PLATYLOMA) ANDROMEDEHFOLIA, Kaulf, Enum. Fil. p. 188. Hueco Swamps, Texas. 
This is a common fern in California. 
EXPLANATION OF THE PLATES. 
Plate I. Setenra pissecTa. Page 160. 
Fig. 1, a flower, moderately magnified ; fig. 2, a sepal; fig. 3, a petal; fig. 4, the stamens ; 
fig. 5, the young pod; fig. 6, the mature pod—all more magnified than fig. 1; fig. 7, seed, 
still more magnified ; fig. 8, section of the same, equally magnified. 
Plate II. CaLyMMANDRA CANDIDA. Page 166. 
Fig. 1, involucre and receptacle; fig. 2, chaff of the pistillate flowers; fig. 3, a pistillate 
flower; fig. 4, a perfect flower, partly enclosed in its woolly chaff; fig. 5, the same, without the 
chaff; fig. 6, chaff of the perfect flower ; fig. 7, corolla of the perfect flower laid open—all mod- 
erately enlarged ; fig. 8, a stamen, more magnified ; fig. 9, upper portion of the style from a 
perfect flower, equally magnified ; fig. 10, the same from a pistillate flower ; fig. 11, achenium, 
pretty highly magnified ; fig. 12, longitudinal section of the same. 
Plate III. Fruacrnopsis MULTICAULIS. Page 166. 
Fig. 1, involucre and receptacle; figs. 2 and 3, palew of a pistillate flower; fig. 4, a pistil- 
late flower; fig. 5, palea of a staminate flower ; fig. 6, staminate flower; fig. 7, corolla of the 
same, laid open and showing the stamens; fig. 8, its abortive style; fig. 9, achenium; fig. 10, 
vertical section of the same—all the figures variously magnified. 
Plate IV. SreNANDRIUM BARBATUM. Page. 168. 
Fig. 1, plan of the flower; fig. 2, a flower; fig. 3, the corolla laid open, showing the stamens 
and pistil; figs. 4 and 5, stamens, shown in two etians—all moderately enlarged; fig. 6, 
pistil, more magnified, the ovary laid open vertically, showing the ovules; fig. 8, a capsule, 
moderately magnified ; fig. 9, cross-section of the same; fig. 10, a seed, more highly magnified ; 
fig. 11, longitudinal section of the same. 
3e 
