14 
BOTANY. 
Umbels compound on long peduncles. Flowers numerous, showy, whitish with red central 
lines. Pose creek ; September. 
Eriogonum roseum, nova species. Herba sesquipedalis erecta virgato-ramosa arachnoideo- 
tomentosa, bracteis trinis parvis appressis ovato-acutis fusco-rubentibus, basi foliosa, dein scapi- 
formis multumque infra medium in bractearum axillis trifurcata, verticillo unico trifoliato, nunc 
ramulos ac folia prodente, cum brachiis alternante, nonnunquam capitulis imm furcae insidentibus; 
abinde solum ad nodos ramiferos foliis singulis parvis. Folia anguste spathulato-ovata, margine 
undulata, in petiolum longum attenuata, superne rubentia, radicaliacum pedicellis l|-2" longa. 
Involucra sessilia plerumque solitaria, tubuloso-campanulata compressa secundum ramos subse- 
cunda, nonnunquam et terminalia. Flores parvi exserti incarnati vel purpurei. Paleolee 
capillares inclusae. 
The whole plant, except the flower, covered with a white arachnoid tomentum. Stem about 
1^ foot high, virgately branched, with a whorl of three bracts at each node, (besides occasional 
leaves,) leafy at the base, hence scapiform and trifurcate below the middle, with the prongs 
opposite at the bracts, and alternate to a solitary ternate whorl of leaves, which sometimes 
produce accessory branches and leaves from their axils, and sometimes capitula seated in the very 
centre of the trifurcation ; a small solitary leaf at each further branching. Leaves narrowly 
spathulate-obovate, undulate at the margin, attenuate into long petioles, with a reddish tinge; 
radical leaves 1^—2 lines long, including the petiole. Involucres sessile, mostly solitary, 
tubuloso-campanulate, acheniform, unilateral along the branches and terminal. Flowers small, 
glabrous, exserted, pinkish or purpurascent. Floral chatf capillary included. Pose creek; 
September. 
Eriogonum Plumatella, nova species. (Specimina incompleta.) Caulis vix pedalis, dense 
floccoso-tomentosus, rami divaricati, spiculis densis (cum internodiis vix 3-linearibus) pinnati. 
Folia ***** Bracteae trines, patentes in spicis triangulares, in ramis oblongo-lineares, obtusae. 
Involucra solitaria, campanulata, segmentis rotundatis, incarnato-fusca. Flores albi, lobis 
obovatis. Paleae pallidae, lineari-lanceolatse vel truncatae, apice denticulate, pube longa 
sparsa exserta. • 
(Specimens incomplete.) Stem hardly a foot high, densely tomentose, terminating in 
divaricate panicles, pinnate with crowded spikelets, internodes scarcely 3 lines long. 
Leaves, (apparently all radical.) Bracts in threes spreading, those of the spikelets triangular, 
those of the branches oblong linear obtuse. Involucres solitary, campanulate, with rounded 
segments, and of a reddish-brown color. Flower white, with ovate lobes. Paleolse linear 
lanceolate truncate, denticulate at tip with a sparse, but exserted pubescence. Pose creek; 
September. 
Eriogonum Heermanni, (E. geniculatum Journ. Acad. Phil,, vol. 3, part 1,) nova species. 
(Specimina incompleta.) Caulis circiter pedalis, (asque ac involucra,) pallide virens glaberri- 
musque, ramis divaricatissime furcatis. Folia. ***** Bractem trinse minute late 
triangulares, patentes. Involucra solitaria, parva, campanulato-subglobosa. Flores magni 
involucris duplo longiores, pallide incarnati, lobis exterioribus orbiculato-obcordatis interioribus 
obovato-linearibus acutis. Paleolee lineares lanceolate cuneate, apice rubente truncato dentic¬ 
ulate, involucrum agquantes, pube glandulosa. 
Stem about a foot high, and, as well as the involucres, pale green and very glabrous; 
branches very divaricately forked. Leaves ***** (apparently only radical.) Bracts in 
threes, minute, broadly triangular, spreading. Involucres solitary, small, campanulate, 
