Imágenes de páginas
PDF
EPUB

(ut videtur) saturate cærulea, carina nuda. — Summit of the Cascade Mountains, lat. 49°, Dr. Lyall (Coll. Oregon Bound. Comm., distrib. Herb. Kew.). — The short, tufted shoots spring from a woody base barely an inch high, terminated by the solitary naked peduncle, bearing a head (half or two thirds of an inch in diameter) of deep blue or violet flowers. Pedicels short: bracts shorter than the calyx, caducous.

LUPINUS Danaus : herbaceus, e caudice perenni cæspitosus, pumilus, strigoso-hirsutulus; stipulis subulatis ; foliolis 4-5 oblanceolatis (lin. 2 - 4 longis); racemo oblongo (pollicari) densifloro; calycis minute bracteolati labio inferiore tridentato, superiore profunde bifido; corolla albo-violacea, carina rectiuscula ciliata. — Mount Dana, alt. about 12,500 feet, Bolander. — This interesting little Lupine may be held to bear the name either of the lofty peak it inhabits, or of the distinguished geologist and naturalist whom the mountain commemorates. It was very scantily collected, and is probably rare or out of reach. The slender and diffuse or ascending flowering stems are only 2 or 3 inches high, and 1 – 3-leaved below the middle. Bracts subulate, rather shorter than the calyx, twice the length of the pedicel. Corolla 3 lines long; the vexillum and wings apparently white and tinged with blue or violet, the keel deep violet. — This and the two preceding seem very distinct from all other North American species. Neither of them can well be L. minimus, Dougl., which I do not identify.

Trifolium BOLANDERI: T. repenti subsimile, multiceps e caudice incrassato, glaberrimum; caulibus adsurgentibus 1-2-floris ; stipulis herbaceis ; foliolis obovato-oblongis vix retusis ; pedunculis (spithamæis) folia longe superantibus ; floribus (cærulescentibus ?) arcte capitatis mox deflexis; pedicellis etiam fructiferis brevissimis ; calycis dentibus subulatis tubo campanulato basi gibboso subæquilongis ; ovario dispermo. — Westfall's Meadows above the Yosemite Valley, at the elevation of 8,000 feet, Bolander.

TRIFOLIUM BARBIGERUM (Torr. Bot. Whippl. Exped.), var. AnDREWSII: multo majus, subpedale, villosum ; foliolis majoribus subpollicaribus ; involucro explanato quandoque fere pollicem lato (corollis atropurpureis). — Collected by the late Dr. Andrews in 1856; but now Mr. Bolander sends it from Mendocino City (4781), with heads &c. fully as large as those of the related T. cyathiferum, and also, from drier and sandy soil (4755), in a form like the original of Bigelow and Fitch, but less depauperate.

DALEA DIVARICATA, Benth. Bot. Voy. Sulph., var. CINEREA: pube minuta præsertim calycis albescens ; pedunculis haud divaricatis bi - tripollicaribus; spicis virgatis laxe 25-40-floris; calycis dentibus ovato-oblongis, infimo paullo longiore. — Fort Mohave, on gravelly hills, Dr. J. G. Cooper. “Stems two or three feet high : flowers dark purple.” Except for the minute hoary pubescence and other minor particulars, this would seem to be Bentham's D. divaricata, from the coast of Lower California (and a comparison of specimens made at Kew discloses no specific differences). There is nothing divaricate in the specimens, however.

PETALOSTEMON FOLIOSUS : undique glaber; caulibus crebre foliosis; foliolis 8-14. (sæpius 12-) jugis lineari-oblongis mucrone cuspidatis, glandulis paucis parvis ; spica cylindrica brevi-pedunculata ; bracteis aristatis e basi lanceolata ; calycis dentibus subæqualibus tubo cylindraceo dimidio brevioribus ; floribus roseo-purpureis. — Banks of Fox River, Kane Co., Illinois, Burgess Truesdell, 1867. Also near Nashville, Tennessee, Mr. Hatch, 1854. A well-marked species, which has been singularly overlooked, or else is very local. It has the habit of P. villosus, but with yet more numerous leaflets, and is glabrous throughout, even to the ovary. The very numerous and equable leaflets, thicker spikes with more exserted bracts, shorter calyxteeth, &c., no less than the color of the flowers, distinguish it at once from P. candidus. Both ovules are apt to be fertile in this and the last-named species.

ASTRAGALUS MALACÚS: undique molliter villosus; caulibus e caudice perenni gracili erectis 2 - 3-foliatis (spithamæis vel pedalibus); foliolis 6 - 7-jugis obovatis retusis ; pedunculis folia superantibus spicam multifloram demum laxifloram gerentibus ; calycis tubo cylindrico dentibus setaceo-subulatis triplo longioribus ; corolla læte purpurea ; legumine oblongo-lanceolato arcuato haud stipitato crebre mollissime villoso tenuiter coriaceo subcompresso sutura dorsali (extus leviter sulcata) usque ad ventralem acute marginatam intrusa bilocellato polyspermo (sectione transversa auguste obcordata). - Nevada, near Carson City, Dr. C. L. Anderson. I formerly confounded an imperfect specimen of this with A. Parryi, Gray; and I know of no other more nearly related to it. But it is more softly villous, and usually more caulescent, has far longer peduncles, and spikes of bright purple or violet flowers, in a raceme which at length elongates, often to the length of 4 inches, the tube of the calyx is longer and narrower (flower over half an inch long); and the very villous legumes are thinner, little over an inch in length, and when apparently mature not at all obcompressed but somewhat flattened laterally, with the acute ventral suture salient, completely bilocellate.

[graphic]

ASTRAGALUS ARTHU-SCHOTTII, Gray, Rev. Astr., char. fruct. emend.: spithamæus ad tripedalem ; legumine maturo ovato acuminato (lin. 7-8 longo) canescente chartaceo ad suturam ventralem profundius sulcato ob septum dorsalem completum bilocellato. — In sand on the Mohave River, at Camp Cady and elsewhere, Dr. J. G. Cooper.

ASTRAGALUS BOLANDERI: subpedalis, cinereo-puberulus; stipulis brevibus scariosis adversus petiolum connatis ; foliolis 6-9-jugis sublinearibus oblongisque; pedunculis folio brevioribus capitato-plurifloris ; pedicellis brevissimis, fructiferis reflexis; legumine in stipitem e calyce exsertum hamato-incurvo orato acutato obcompresso turgido coriaceo glabro (lin. 8 - 9 longo 3 – 4 lato) polyspermo ob septum completum bilocellato. - Dry ground, at Ostrander's Ranch, Yosemite Valley, Bolander. Flowers not seen. The teeth of the calyx are almost setaceous, and more than half the length of the cylindraceous tube. Stipe 4 lines long. The species is to be ranked, perhaps, with the Oroboidei, although the stipules are connate and the legume completely two-celled.

LATHYRUS Torreyi: pusillus (spithamæus ad pedalen), villosopubescens ; radice perenni ; stipulis semisagittatis angustis ; foliolis 4-6-jugis ovalibus mucronatis (lin. 4-8-longis); cirrho simplici sæpius brevissimo; pedunculo brevi vel brevissimo sæpius uniftoro; calycis lobis setaceo-subulatis tubo duplo longioribus ; corolla purpurascente; legumine pauci-ovulato monospermo in pedicellum deflexo. L.? villosus, Torr. in Stevens (Cooper & Suckley) Pacif. R. R. Rep.; a preoccupied name. — Mendocino or south part of Humboldt Co., Bolander. A neat and peculiar little species, very different from any other, at least in North America, in slenderness, in the small size of the leaflets, and the single-flowered peduncles. The latter are sometimes scarcely longer than the stipules, and seldom half the length of the leaf. Bolander's specimens are past the flowering state ; the young legume minutely pubescent, semi-oblong, flat, apparently maturing only a single seed.

PRUNUS (AMYGDALUS) ANDERSONII: glaberrima; ramis spinescentibus ; foliis fasciculatis parvis (lin. 4-9 longis) spathulatis oblongisve obtusis tenuiter subnervoso-venosis subserrulatis eglandulosis ; floribus longiuscule pedicellatis ; calycis (ebracteolati) lobis integer

VOL. VII.

[ocr errors]

rimis tubo turbinato brevioribus ; petalis læte roseis; ovario cum styli basi hirsutissimo; drupa sicca subglobosa pubera. — Foot-hills of the eastern side of the Sierra Nevada, near Carson : A. March, Dr. C. L. Anderson. [Also collected by Dr. Torrey.] “ About 3 feet high.” Flowers showy; the petals apparently of nearly the color of peachblossoms, 4 lines long, entire. Lobes of the calyx broadly triangular and obtuse, at length oblong. Stamens as long as the petals, 25, triseriate, but approximate. Drupe half an inch long.

HORKELIA BOLANDERI: humilis, cæspitosa ? vel humifusa e caudice lignescente ; foliis pube molli densa villoso-incanis ; foliolis 13 - 21 cuneatis palmatifidis, lobis 3 - 5 ovatis oblongisve; stipulis angustolinearibus integerrimis; cyma parva densiflora ; calycis alte 5-fidi segmentis accessoriis oblongis quam vera latiora subdimidio brevioribus; petalis obovatis vix unguiculatis; filamentis lanceolatis. — Dry alkaline soil, near Clear Lake, coll. January, 1863, Bolander. Only winter specimens known; the flowering stems rising 3 to 5 inches above the lignescent and tufted leafy base. This and the following are among those species which go far to justify the views of Bentham and Hooker, and now also of Engelmann, who would combine Horkelia and Ivesia with Potentilla. I am reluctant to adopt this conclusion, but have chosen a specific name which is not preoccupied in the latter great genus.

IvESIA TRIDENTATA (Horkelia tridentata, Torr. Bot. Whippl. t. 6): pube mollissima villosa ; caulibus patentibus vel erectis (pedalibus) gracilibus apice nudis ; foliis junioribus argenteo-sericeis, adultis subglabratis ; foliolis 5-11 subdissitis oblongo-cuneatis apice plerumque tridentatis; stipulis pauci-laciniatis vel subintegris ; cymis pedunculatis confertifloris ; pedicellis evolutis forem adæquantibus ; calycis campanulati segmentis accessoriis linearibus tubo æquilongis quam vera acutissima brevioribus ; petalis (albis) breviter unguiculatis ; staminibus 10; carpellis 5 – 10? — In the Sierra Nevada. The character is here drawn up from the very beautiful and complete specimens collected by Mr. Bolander, in 1866, in the region near Mount Dana. The stems are about a foot high and erect or nearly so. Leaflets of the earlier radical leaves inclining to obovate, of the stem-leaves (reduced to 1–3 pairs) verging to linear-cuneate : some of the upper stipules entire. The narrow filaments are adnate to the calyx-tube up to the sinuses and base of the lobes, and are thus distant from the (villous) receptacle, as in Horkelia and Ivesia generally, but not in

Willous) receptent and base of the wents are adn

Potentilla. Carpels in these specimens usually 5. I have not found so many as 10; although Dr. Torrey's figure represents a larger number, and also omits the villosity of the receptacle. This species is certainly embarrassing to the maintenance of these genera; but it ranks with Ivesia, although the foliage is anomalous.

IVESIA UNGUICULATA: laxe villosa, subpedalis ; foliolis perplurimis quasi-verticillatis laxis plerisque bis-bipartitis, segmentis linearibus; stipulis pauci-laciniatis vel integris; floribus glomeratis ; pedicellis brevissimis ; calycis segmentis accessoriis linearibus vera triangularilanceolata acutissima fere adæquantibus; petalis dilatato-cuneatis longe tenuiter unguiculatis ; staminibus sub-15, filamentis filiformi-subulatis; carpellis 5 – 8. — Westfall's Meadows, Yosemite Valley, alt. 8,000 feet, in wet places, Bolander. Stems in tufts from a thickish caudex, from a span to a foot high. Leaves in aspect not unlike those of Horkelia tenuiloba, but the leaflets crowded much like those of Ivesia Gordoni, and whitish-silky or villous with long very soft hairs when young, but glabrate with age. The leaflets are 2 or 3 lines long, more commonly twice 2-parted into linear or linear-spatulate divisions, some of them simply 3-parted, others 2-parted, and the divisions cuneate and 2-cleft. Stipules lanceolate, acuminate and nearly entire, or broader and cut into 2 or 3 lanceolate lobes. Cymes or dense clusters shortpeduncled. Calyx 3 lines long, deeply cleft. Petals 2 lines long, the slender claw more than half the length of the broadly cuneateobovate lamina. Stamens shorter than the calyx, one inserted before each petal and one each side of it, i. e. two to each true calyx-lobe, not before its centre but lateral. The arrangement is, perhaps, more clearly expressed by saying that, when 15, ten are alternate with the ten calyx-lobes, counting the accessory ones, and five are opposite the latter. These five appear to be always present; but one or two, or even three or four, of the ten are occasionally wanting. Receptacle sparingly villous.

IVESIA SANTOLINOIDES (Gray, Proceed. Amer. Acad. 6, p. 531), char. suppl.: spithamæa ad pedalem; cyma demum effusa ramossissima, ramulis pedicellisque capillaribus ; achenio subreniformi-globoso utriculato calycem fructiferum implente. — From fine fruiting specimens gathered by Bolander, on dry rocky hills along the Merced River, above the Yosemite Valley, alt. 9,000 feet. The inflorescence becomes paniculate, exceedingly effuse and decompound, and the pedicels generally from a quarter to half an inch in length. Petals orbicular, sessile.

« AnteriorContinuar »