13. KUHNIA. Linn. spec. ed. 2. appx. p. 1662; Vent. Cels. t. 91.
Kuhnia I Strigia, DC.—Critonia, Gtertn., not of ƒ?. Br.
Heads 10—25-flowered. Scales of tlie involucre lanceolate, rather loosely
imbricated in two or three series; the exterior shorter, acute or acuminate.
Receptacle naked. Corolla tubular, somewhat dilated at the base, not expanded
above, 5-toothed; the teeth short, obtuse, glandular externally.
Style with a villous bulb at the base; the branches at length exserted, slightly
clavate and somewhat flattened at the summit, glabrous. (Anthers sometimes
abortive or unconnected?) Achenia nearly cylindrical, many-striate,
sessile. Pappus a single series of strongly plumose bristles.—Perennial
herbs or suffrutescent plants, with alternate or somewhat opposite 1-nerved
or tripli-nerved lanceolate leaves, sprinkled with resinous dots beneath.
Heads paniculate-corymbose. Flowers white or purple.
We have drawn the above character from the North American species alone, to
which, with probably K. rosmarinifolia of Cuba (the section Strigia, DC.) the genus
should doubtless be restricted: the species with pentagonal estriate achenia
seem to be closely allied to Eupatorium, while Kuhnia proper is more near to Cla-
vigera.—Kuhnia glutinosa of i-lliott is placed by De Candolle in his section Leio-
gonia, and is referred by Hooker to Eupatorium altissimum, in both cases on the
authority of specimens communicated by the author himself, who had inadvertently
sent under that name the Eupatorium altissimum, a very different plant from the K.
glutinosa of his herbarium (also long since sent to his correspondents in this country),
and by no means agreeing with his published description,' in which the pappus
is said to be “ beautifully feathered.”—Kuhnia Arabics, Hochst. ip Steud.! pi. Arab,
un. itin.; DC.! prodr. 7. p. 267, is a species of Pegolettia, as Dr. Amott first intimated
to us.—Nothites, Cass, (of which we know a single species) is nearer Kuhnia
than Mikania, but a distinct genus.
1 . K. eupatorioides (Linn.): stem herbaceous; leaves, as well as the
scales of the involucre, thickly sprinkled beneath with shining resinous dots,
lanceolate; the cauline ones mostly irregularly serrate; those of the branches
narrow and usually entire; heads in paniculate corymbs; flowers white or
yellowish-white.—Linn. 1. c. (excl. syn- Plulc.); Linn. f . decad. 2. p. 21,
1.1 1 ; Darlingt.! fl. Cest. p. 449. K. eupatorioides & K. Critonia, Willd.
spec. 3. p. 1773. K. eupatorioides, dasypia, glutinosa, elliptica, tuberosa,
fulva, (media, glabra,) & pubescens, Raf. Critonia Kuhnia, G crtn. fr . 2.
p . 411, t. 174,ƒ. 7 ; Michx.lfl.. 2. p . 10i.
[3. corymbulosa: lower surface of the leaves, and the branches, cinereous-
pubescent ; lower leaves ovate-lanceolate, irregularly serrate or sometimes
laciniate-toothed; corymbs rather short and dense.—K. eupatorioides, Ell.
sic. 2. p. 291; DC. prodr. 5. p. 126. K. glutinosa, E ll.! 1. c., not of DC.
prodr.! K. suaveolens, Fresenius, ind. sem. hort. Franc. 1838.
y. gracilis: leaves scarcely pubescent; the lower cauline ones lanceolate
and more or less serrate; the others linear and mostly entire; corymbs loose,
paniculate.—K. paniculata, Cass. diet. 24. p. 516; DC.! 1. c. K. Critonia,
Ell. 1. c., Sfc.
Dry soil. New Jersey! and Pennsylvania! to Florida! Alabama! Louisiana
! and Texas! Sept.-Oct.—Lower leaves frequently opposite. Achenia
pubescent when young, nearly glabrous when mature. Pappus white
or tawny.—The K. eupatorioides of Linnaeus, and the Critonia Kuhnia of
Gaertner were clearly founded on the same plant, and that the more common
form in New Jersey and Pennsylvania, which is rather the K. Critonia of
authors than K. eupatorioides; so that some changes in nomenclature would
be necessary if more than one species were admitted. But, considerable as
is the difference between the extremes, we have a great variety of specimens
forming such complete transitions that we are unable even to characterize a
senes of varieties. The involucre, corolla, achenia, &c. are precisely the
same in all. We have, therefore, taken the more common northern plant as
the type of the species, and have designated the extreme forms as varieties.
14. BULBOSTYLIS. DC. prodr. 5. p. 138.
Heads 10-25-flowered. Scales of the oblong or cylindrical-campanulate
involucre rather loosely imbricated in about 3 series, striate; the exterior
short, the inner lanceolate or linear. Receptacle narrow, naked. Corolla
tubular, slender, somewhat dilated at the base, contracted at the summit,
with 5 extremely short externally glandular teeth. Style with a commonly
villous bulb at the base, included. Achenia nearly terete, or obscurely
5-angled, about 10-striate. Pappus of numerous capillary scabrous bristles,
longer than the corolla— Suffruticose (chiefly Mexican) plants, with terete
branches. Leaves opposite or alternate, ovate or lanceolate, petioled, serrate,
often dotted with resinous globules. Heads in thyrsoid or spicate leafy
panicles. Flowers mostly white or ochroleucous.
* l r iium DncKema: from. Eupatorium chiefly by its striate achenia. wmen again is distingguuiissnheecdt
1. B. Californica .- stem and branches velvety-puberulent; leaves ovate on
short petioles, irregularly serrate-toothed, 3-nerved at the base, nearly glabrous
above, dotted with minute glands and puberulenl but scarcely reticulfted
beneath, the upper ones mostly alternate; heads in a spicate thyrsus, about
20-flowered ; scales of the involucre obtuse ; the exterior very short an-
pressed ; the innermost linear, 1- 2-nerved; achenia minutely Jubescent .L
1 'AamZ .T ! }boTt. BkeDechi e' y, psuropdprl;. p5‘. I35103. 8’ I,artly (the California/plant'); Hook.
California, Douglas!—Differs from the Mexican plant (herb. DC. ') as
well in the leaves, which have not. the upper surface scabrous, nor the lower
reticulated, as m the obtuse scales of the involucre.
2. B. microphylla (Nutt.): much branched, viscidly pubescent and glandular
, leaves alternate, ovale, petioled, sparingly toothed, tripli-nerved equally
pubescent and viscid on both sides ; those of the branchlets very smalf
nearly sessile; heads about 15-flowered; exterior scales of the involucre
th squarrose fohaceous tips; the interior erect, linear, 2- 3-nerved mucro-
nulate. Nutt., m trans. Ainer. phil. soc. (n. scr.) 7 ® 287 R
Oregon, on the Walla-wallah, Nuttall / - A low suffruticose plant- the
leaves of the numerous branchlets only 2 or 3 lines long, rathe/thick re
sembhng those of some Asters. Heads small, scattered. 8 Achenia not s e e /
Heads 30-50-flowered. Scales of the campanulate involucre imbricated
lanceolate or hnear, striate; the exterior shorter. Receptacle naked, flat!
oro la tubular, slightly expanded towards the summit; the teqth short ob-
use scarcely glandular externally. Style with a villous bulb at the base •
the branches often much exserted, somewhat clavate, glabrous. Achenia