fulvous rigid pappus, and glabrous striate-ribbed linear achenia as in the species of this section.

APLOPAPPUS (PYRROCOMA) APARGIOIDES: cæspitosus, humilis, villosulus seu glaber; caulibus floridis subscapiformibus e caudice crasso folia pleraque radicalia rosulato-conferta linearia seu lanceolata laciniato-pinnatifida superantibus mono- tricephalis; involucro hemisphærico multifloro, squamis 3 – 4-seriatim imbricatis sæpius obtusis appressis; ligulis 20-24 oblongis exsertis. At Soda Springs, on the Tuolumne River, alt. 9,700 feet, Bolander. Also, sparingly, Carson City, Nevada, Dr. C. L. Anderson. Stems about a span high, slender, naked above; the leaves reduced to small linear bracts, simple or divided into one or two peduncle-like branches. Radical leaves 2-5 inches long, in shape not unlike those of Leontodon autumnale, but rigid. Head nearly half an inch in diameter, naked. Style, glabrous striate achenia, and pappus of the section; the later not very copious nor rigid. One form has the stem slightly villous-pubescent and the margins of the radical leaves sparingly hirsute-ciliate: the other form is glabrous.

APLOPAPPUS (PYRROCOMA) PANICULATUS

Homopappus panic

Dr.

ulatus, Nutt., var. VIRGATUS: capitulis numerosis minoribus. — Bridgeport, on the eastern side of the Sierra, in alkaline soil, Bolander. Anderson collected it at Carson City, Nevada, equally with slightly hairy ovaries; but the heads larger,' nearly as in Nuttall's plant.

APLOPAPPUS (ERICAMERIA) BLOOMERI (Gray, supra, 6, p. 541), var. ANGUSTATUS: foliis angustissime linearibus; capitulis racemosis plerumque 10-12-floris, ligulis 1-4 quandoque nullis. — On Mount Shasta, alt. 6,000 feet, Prof. Brewer (1415); Little Yosemite Valley, Empire Camp on the Yosemite Trail, and Soda Springs, alt. 9,700 feet, Bolander. From an imperfect specimen it is probable that this was also collected on the head-waters of the Sacramento in Wilkes's Exploring Expedition. It seems to be connected by gradations with the ordinary form of A. Bloomeri. It is a shrub, one or two feet in height, according to Mr. Bolander.

LINOSYRIS (CHRYSOTHAMNUS) BOLANDERI: fruticosa, pedalis, subviscosa; ramis lana valde implexa dealbatis; foliis spathulato-linearibus seu oblanceolatis acutatis haud rigidis subtrinerviis; capitulis paucis pluribusve ad apicem ramorum corymboso-congestis bracteis 1-2 linearibus iisdem dimidio brevioribus stipatis; involucro cylindraceo 7-11-floro, squamis 10-12 pauciseriatis lanceolato-linearibus attenu

ato-acuminatis fere glabris; receptaculi alveolis in dentes subulatos productis; acheniis sericeo-pubescentibus. Mono Pass, at 9-10,000 feet of elevation, Bolander. In aspect and foliage (except that the leaves are more lanceolate and acute or acuminate), this much resembles Aplopappus Macronema, Gray (Macronema discoidea, Nutt.) which is one of the many links connecting Aplopappus and Linosyris ; but it is a near relative of L. Parryi, and a genuine Chrysothamnus. The narrow and much crowded heads are about three fourths of an inch in length.

CONYZA COULTERI (C. subdecurrens, Gray, Pl. Fendl. p. 78, & Pl. Wright. 1, p. 102, non DC.): molliter viscoso-pubescens; caule ramisque strictis ad apicem usque foliosis; foliis adnato-sessilibus lineari-oblongis vel inferioribus spathulatis plerisque pinnatifido-dentatis incisisve; panicula conferta virgata; capitulis parvis (sesquilineam longis); involucro disco breviore, squamis hirto-viscosis linearibus acutis. This is Coulter's No. 285 and 286, and has recently been collected near Fort Mohave by Dr. Cooper. It is quite different from the Mexican Conyza or Erigeron subdecurrens, which I now possess from Dr. Schultz. The pistillate flowers have no ligule, and the hermaphrodite flowers are only 5-7; so that, although the pappus is not copious, the plant is better placed in Conyza.

FRANSERIA ERIOCENTRA: fruticosa; foliis oblanceolatis vel spathulatis sæpius sinuato vel inciso-dentatis cinereis, junioribus ramulisque villosulis; involucris fructiferis fusiformibus unilocularibus monospermis cum aculeis longis validis longe lanatis. East slope of Providence Mountain, Arizona, May, 1861, Dr. J. G. Cooper. In fruit only; the male flowers not seen. Apparently a low shrub. Spines of the involucre 2 lines long, larger than the diameter of the cell, thickly clothed with long white wool.

ANCISTROCARPHUS, Nov. Gen.

Capitulum pluriflorum, heterogamum; floribus omnibus tubulosis, singulis palea receptaculi suffultis; exterioribus 5-10 fœmineis in receptaculo breviter cylindrico 1-2-seriatis, corolla filiformi; centralibus 5 masculis, corolla 4-dentata. Involucrum præter paleas flores involventes nullum. Paleæ subcoriaceæ, ovatæ, acuminatæ, fl. fœm. saccatæ, apiceque breviter scarioso-appendiculatæ modo Psilocarphi, achenium obovato-fusiforme vix obcompressum includentes cum eo tardius deciduæ; steril. 5 majores flores longius superantes, concavæ vel sub

cymbæformes, in cuspidem apice uncinatam rigidam sensim acuminatæ, persistentes, fructu delapso stellato-patentes. Pappus nullus. — Herba exigua, digitalis, annua, Filaginis Gallica facie; foliis linearibus alternis, summis capitulum vel glomerulum 3-4-cephalum sessile involucrantibus.

ANCISTROCARPHUS FILAGINEUS. Dry hillsides, Round Valley, Eel River, Mendocino Co., May, Bolander. Stems simple or sparingly branched, slender, 2 to 4 inches high. Leaves narrowly spatulatelinear, clothed as is the whole plant with light flocculent wool. Paleæ of the fertile flowers arachnoid-woolly, especially towards the involute margins, those of the sterile flowers fully twice larger, becoming nearly two lines long, more naked, the hooked tips prominent, making the head or glomerule squarrose. To provide for this little plant I am obliged to add yet another to the Micropoid genera. This is related on the one hand to Nuttall's Psilocarphus, of which it has the achenia and the enclosing fructiferous paleæ ; on the other to Hesperevax caulescens (which may be completely separated from Evax, to which I referred it in Bot. Whipp. p. 45, t. 10), having like that a whorl of coriaceous paleæ surrounding the sterile flowers. One would like to combine these last; but the habit does not invite it, and the naked fertile paleæ of Hesperevax are open as in Evax, although apparently persistent.

BALSAMORHIZA BOLANDERI: glutinosa, fere glabra; caulibus (subpedalibus) e caudice longo adsurgentibus superne 3-5-foliatis monocephalis; foliis omnibus petiolatis ovatis subrotundis ve sæpissime leviter cordatis acuminulatis integerrimis; capitulo maximo; involucro duplici, exteriori foliaceo 6-8-phyllo, phyllis ovatis oblongisve acutis disco longioribus, interiori e squamis uniseriatis lanceolatis supra medium villosissimis paleis receptaculi similibus ; acheniis (compressis vel obcompressis) obovato-oblongis glabris areola epigyna parva.- Shady hillsides, at Auburn, April, 1865, Bolander. "Rootstocks large; whole plant glutinous and of a strong resinous smell." The aspect of this remarkable species is that of a Wyethia. Radical and cauline leaves alike (2 to 4 inches long, on petioles of 6 to 20 lines in length), but the base of the stout stems bears one or two scales in place of foliage; the uppermost leaf near the head or an inch or two below. Head in the dried specimens 2 inches in diameter; the yellow rays 12 or more, an inch and a half long, broad. Achenia remarkably flattened for the genus. [This, as now appears, was collected in 1844 by Fremont on the upper Sacramento, and later by Major Rich.]

WYETHIA OVATA: tomentoso-pubescens; caule valido tripedali superne ramoso, ramis monocephalis; foliis ovatis acutissimis triplinerviis subtus canescentibus, majoribus nunc subcordatis deltoideisve omnibus petiolatis; capitulis mediocris; involucri squamis lanceolatis, exterioribus laxis discum haud superantibus; ligulis 10-14; pappo calyci formiirregulari exaristato. - Dry hillsides at Clark's, Mariposa Co., Bolander. [Also collected by the late Thomas Bridges.]-Cauline leaves 5-7 inches long, on petioles of 1 or 2 inches; those of the flowering branches 2 or 3 inches long and less truncate or rounded at base; the principal veins and ribs prominent underneath; veinlets not reticulated. Heads an inch in diameter. Rays often with imperfect stamens. Achenia about 4 lines, the pappus nearly a line long.

RUDBECKIA CALIFORNICA: caule simplici inferne glabro apice longe nudo pedunculiformi monocephalo; foliis pube brevi molli indutis ovato-lanceolatis penninerviis membranaceis parce inæqualiter serratis nunc inciso-dentatis, caulinis nunc lyrato-tripartitis, summis semi-amplexicaulibus; involucri squamis linearibus subuniseriatis ; ligulis cuneato-oblongis sesquipollicaribus discum cylindraceum adæquantibus vel superantibus; fl. disci paleis acheniisque R. occidentalis, Nutt. — Mariposa Big-tree Grove, Bolander. [Also in a collection of the late Thomas Bridges.] Stem 3 feet high, somewhat pubescent at the summit. Leaves 3 to 6 inches long, all but the upper contracted into margined petioles, occasionally obscurely triplinerved. This may prove to be a radiate variety of R. occidentalis, in which traces of pubescence are sometimes to be found.

RIGIOPAPPUS LEPTOCLADUS, Gray, described from Dr. Lyall's collection (supra, 6, p. 548), was gathered by Mr. Bolander at Newcastle in California, in 1865, and on Russian River in 1866.

BURRIELIA LANOSA, Gray, in Bot. Whipp. (Pacif. R. R. 4), p. 51, & Bot. Mex. Bound. p. 96. Near Fort Mohave, Dr. J. G. Cooper. Better developed specimens than before collected, 2 to 4 inches high, diffusely branching; the leaves mostly narrowly spatulate, and the cylindraceous heads peduncled. The rays prove to be white, and the pales of the pappus vary from 8 to 12. All the upper leaves are alternate. The involucre is that of a Bahia of the section Eriophyllum : but the setiform appendages or cusps to the anthers (here remarkably long) are as in Burrielia. They are similar, however, in Bahia rubella and B. Wallacei, Gray, to which, especially to the former, the present plant is very nearly related.

BURRIELIA (DICHETA) MARITIMA: arenoso-pubescens, mox glabrata; caulibus diffusis; foliis oblongo-linearibus integerrimis trinervulis ; pedunculis folia paullo superantibus; involucri squamis ovali-oblongis 6-8; ligulis totidem brevissimis; corollis fl. disci (circiter 20) fauce campanulata; acheniis oblongo-linearibus pubescentibus; pappi aristis 3-5 scabris achenio paullo brevioribus setulisque plurimis interjectis. - On the Farallones, rocky islets off San Francisco, Mr. F. Gruber. A span high leaves an inch long: head 4 lines long: the broad ligules barely equalling the disk.

LEPTOSYNNE NEWBERRYI: L. Douglasii facie, stylis, etc.; tubo corollarum brevioribus annulo barbato inconspicuo; acheniis ala lata tenui lævi cinctis (corona obsoleta) fere epapposis. Sitgreaves Pass, Arizona or New Mexico, Dr. Newberry. Camp Grant, Arizona, Dr. Edward Palmer. There are no capitate hairs or glands on the broad and thin wing of the achenium, but some very short ones on the dorsal face of its body. The flowers are intermediate between L. Douglasii and L. Stillmanii.

LEPTOSYNNE MARITIMA = Tuckermannia ' maritima, Nutt. The characters upon which Nuttall's genus rested, never strong, are now quite invalidated.

RIDDELLIA COOPERI: ramosissima (bipedalis, basi frutescens?), lana appressa canescens; foliis augusto-linearibus integerrimis (imis ignotis); pedunculis ramos terminantibus solitariis monocephalis gracilibus; ligulis sæpius 4; pappi paleis oblongis aut integris aut erosolaceris corolla disci et achenio glabro 2-3-plo brevioribus. Gravelly banks at Fort Mohave, Dec. 1861, Dr. J. G. Cooper. On the Colorado, Dr. Newberry. Camp Grant, &c., Arizona, Drs. Elliott Coues and Edward Palmer. In Dr. Cooper's and Dr. Newberry's specimens only are the palea of the pappus somewhat laciniate, making an approach to R. arachnoidea, the Psilostrophe of De Candolle's incertæ sedis, a name which, although a year or two earlier in publication, we trust may remain disused, having been accompanied by an insufficient, and, in some important respects, erroneous character.

HELENIUM BOLANDERI: tomentuloso-pubens, mox glabrescens ; caule valido (pedali ad sesquipedalem) apice aphyllo monocephalo rariusve ramoso 2-3-cephalo; foliis ovatis obovatis vel spathulato-lanceolatis integerrimis ima basi 5-7-nervatis in caulem pl. m. decurrentibus, imis in petiolum angustatis; capitulo pro genere maximo; ligulis plurimis aureis disco subgloboso æquilongis involucro multo longioribus;