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Irli
briuscula. Tlie pappus of the floret of the ray, in all the species, is at least a half shorter than the corolla,
while that of the disk is almost as long as the corolla. We have some doubts whether this genus ought to be
placed next Palafoxia, among the Eupatoriacea, or next Hymenopappus, as has been proposed by De
Candolle. The branches of the style are long, linear, and acuminated, and we have not perceived any trace
of the “ short obtuse cone” which De Candolle describes ; the branches are hirsute from a little above their
separation to the very apex : all this agrees with Eupatorinea, but here, if we mistake not, the stigmatic lines
run on to the summit.
2. C . g la b riu sc u la . D e Cand. P ro d . 5 . p . 6 5 9 .
3 . C . lanosa. D e Cand. P ro d . 5 . p . 6 5 9 .
4 . C . achillecBfolia i p e r e n n i s ? e r e c ta , c a u le c a n o -la n a to s u rs um co rym b o s im ram o so ,
foliis p in n a tis c a n o -tom e n to s is , p in n is lin e a r ib u s p in n a tifid is , lo b is o b lo n g is m in u tis , in v
o lu c ro p u b e s c e n te o b c o n ic o , flo rib u s r a d ii tu b u lo so - in fu n d ib u lifo rm ib u s disco v ix m a jo rib
u s , a c h e n iis a d p r e s s e a lb o -h ir su tis , s ty li ram is p a u llo ex s e rtis re c u rv a tis .
H a b . Dry plains in th e Snake Country. M r Tolmie.
Very closely allied to C. Douglasii or Hymenopappus Douglasii, Hook. Flor. Bor. Am. 1. p. 316.
which is still retained in the latter genus by De Candolle, although it has the short outer pappus and
the widened florets of the ray of Choenactis. C. Douglasii is more glabrous than the present species, has
the pinnæ of the leaves larger and less divided, the involucre large and nearly hemispherical, and very densely
or almost tomentosely pubescent, the pappus, as well as the hairs of the hirsutely villous achenia, tawny, and
the branches of the style straight and much exserted, The first three species have the tube of the corolla
glabrous, and the scales of the pappus about five or six ; but in C. achüleoefolia and C. Douglasii, the tube is
more or less glandular, and the scales of the pappus from eight to twelve.
1. B u r r ie lia D e Cand. P r o d . b . p . 6 6 4 . B a r tl. in L in n æ a , X I I . L i t t . p . 8 0 .
This is frequently cultivated under the name oi Lasthenia Californica, but has the involucre of 10 or 12
distinct scales.
2 . B . ten e rr im a . D e Cand. P ro d . b . p . 6 6 4 .
We have not seen this plant ; perhaps it is a mere variety of the preceding.
3 . B . microglossa. D e Cand. P ro d . b. p . 6 6 4 .
A species with quite the habit of Pectis.
1. L a s th e n ia p / a J em m a . D e Cand. P ro d . b . p . 6 6 4 . {excl. s yn .)
This species has a pappus, but L . Californica, Lindl., referred here by De Candolle, has none, and is, we
conceive, a mere form of the following. Under the name of L . Californica we have received both Burrielia
gracilis and also Lasth. glaberrima.
1. H o lo g ym n e g la h ra ta . B a r tl. I n d . Sem. G o tt. 1837. L in n æ a , X I I . L i t t . p . 8 1 .—
L a s th e n ia g la b ra ta . L in d l . B o t. R e g . t. 1 7 8 0 . D e Cand. P ro d . 5. p . 6 6 3 .— L . g la b e rrim a .
L in d l . B o t. R e g . t. 1 8 2 3 . («on D C .)
1. B a e r ia ch rym stom a . F isch . e t M e y e r , I n d . S em . P e tro p . 1 8 3 6 . D o n in Sw eet, B r . F l.
G a r d . N . S . t. 3 9 5 . D e Cand. P ro d . 7. p . 2 5 4 .
Of this we have received one specimen, from tiie herbarium of the Hort. Soe. of London, under the name
of Lasthenia glabrata. Indeed, Hologymne glahrata, Lasthenia glaberrima, Burrielia gracilis, and the
present plant, are so similar in appearance, as to be often confused in herbaria and in gardens. The four
may, however, at all times, and under all aspects, be readily distinguished by attending to the involucre and
pappus. Burrielia and Lasthenia have a paleaceous pappus—Hologymne and Baeria none;— on the other
hand, in Burrielia and Baeria the leaflets of the involucre are distinct from each other, in Lasthenia and
Hologymne they are united.
1. H e le n ium/jw icsc ew s. A i t . ?— H o o k , e t A r n . su p ra , p . 1 4 9 .— H . p u b e r u lum . D e C and.
P ro d . 5. p . 6 6 7 .— C e p h a lo p h o r a d e c u rre n s . L e s s , in L in n . 6. p . 5 1 7 . D e C and. P r o d . 5 .
p . 6 6 3 .
The specimens collected by Mr Douglas, and named by De Candolle H. puberulum, are younger, taller,
less branched, and not so dark coloured when dry, as those from Chamisso’s and Beechey’s collection ; but
they all appear to us to belong to the same species. De Candolle says the lower leaves are incised, but these
we have not seen.
1. M a d ia sa tiva . M o l.— D e C and. P ro d . 5 . p . 691.,— M . viscosa. a. H o o k , et A r n . .m p ra ,
p . 1 4 5 .— S c le ro c a rp u s g ra c ilis . Sm ith in R e e s ’ C y c l. n. 2. D e Cand. P r o d . b. p . 6 6 6 .
I . M a d a r ia elegans. D e Cond. P r o d . 5 . p . 6 9 2— M a d ia e le g a n s . D o n in B o t. R e g . t.
1 4 5 8 .— M . viscosa, fi. H o o k . FL B o r . A m . 2. p . 2 4 . H ook , e t A r n . su p ra , p . 145.
2 . M . D e Ca n d . P ro d . b . p . 0 9 2 .— fi.? h isp id a . D e Cand.
The Californian plant belongs to the var. fi. Besides those mentioned by De Candolle, Sclerocarpus exiguus,
Sm. in Rees’ Cycl. (De Cand. Prod. 5. p. 566), belongs to the present genus. It is a slender species,
about four inches high ; leaves free from glands, half an inch long and half a line broad ; branches filiform,
few, leafless, one-flowered, about an inch and a half long, with a few glandular hairs near the apex ; involucre
of few leaves, covered with glandular hairs; flowers of the ray from four to seven j the ligula small and
inconspicuous j the florets of the disk are quite abortive.
1. H em iz o n ia congesta. D e Cand. P r o d . b . p . 6 9 2 .
Our specimen is shrubby at the base, the leaves linear-lanceolate and quite entire. The first section of
this genus is so closely allied to Madaria, both in character and habit, that we can point out no mark by
which il may be readily distinguished, except that the achenia are obovate trigonous, the flat face being
towards the disk ; while in Madaria, the achenia are laterally compressed. The stipes is remarkably
curved up against the face of the achenium.
2 . R . m id iic a u lis ; h e rb á c e a m u ltic a u lis , c a u lib u s s im p lic iu s c u lis v el a p ic e co rym b o se
ram o s is p ilis p a te n tib u s m o llib u s h irs u tis , foliis ra d ic a lib u s lin e a r i- la n c e o la tis s e r ru la tis
p lu rin e r v iis g la b riu s c u lis , c a u lin is v illo siu scu lis lo n g e lin e a r ib u s , in fe r io rib u s o p p o s itis
s e r ru la tis v illo siu scu lis, s u p e r io r ib u s a lte rn is s u b in te g e r rim is , c a p itu lis b ra c te a tis 2 -3 -n is
c o n g e s tis , a c h e n iis o b o v a tis o b tu s is s tip ite ro s te llifo rm i in flex o .
We cannot persuade ourselves that this is a mere form of the preceding, to which, however, it is very
closely allied, except in habit. The root seems annual, or rather biennial, while H. congesta appears quite
woody at the base. To the description given by De Candolle of H. luzulcefolia, this certainly approaches ;
but there is no corymb, and we do not find palete over the whole receptacle.