EFe^k^TH^E^A. A JOURNAL OF BOTANY, WEST AMERICAN AND GENERAL EDITED BV WII^LIS LINN JEPSON, ASSISTANT PROFESSOR OF BOTANY IN THE UNIVERSITY OF CALIFORNIA VOLUME VII NEW YOi^K BOTANICAL OAkDEN Berkeley, California. 1899 Vol.-? oo rsn" Fi I :b unro iR SB TO THIS VOLUME Margaret E. Adamson Willis L. Jepson, Ph. D. T. S. Brandegee AvEN Nelson F. S. Collins Elias Nelson J. B. Davy Geo. E. Osterhout L. H. Dewev S. B. Parish Alice Eastwood C. V, Piper W. G. Farlow, Ph. 1). C. L. Pollard M. L. Ferkald R. H. Platt J. M. Greenman B. L. Robinson, Ph. D. Geo. Hansen De Alton Saunders E. W. D. Holwav W. A. Setchell, Ph. D. H. T. A. Hus Blanche Trask VOL. VII. JANUARY, 1899. no. i. ei^yth:e.a. A JOURNAL OF BOTANY, WEST AMERICAN AND GENERAL. BDITKD BT WILLIS LINN JEPSON, Instructor in Botany, University of California. CONTENTS New Species of Plants from Mexico T. S. Brandegee 1 Reviews and Criticisms:—Josephine Tilden's American Algse 9 Short Articles: —A New Weed on "Western Kanges 10 News Notes and Current Comment 11 Berkeley, California, dulau & co., oswald weigel, 37 SoHO Square, London, England Eoniobtrassb 1, Lbipuo, Gbsmaitt BFiVT'FiEA A MONTHLY journal of Botany, West Amer- ican and general, devoted to every department of botanical investigation and criticisna. While the articles on the general and special morphology, classifieation and geographical distribution of Pacific Coast plants impart to the journal a West American character, papers of a more general nature will constantly be given place. Not the least interesting feature of the issues are the short articles, news notes, open letters and comments on current literature. The subscription price is $1.50 per year in advance ; to Great Britain and the continent of Europe, $1.70. Single copies, 25 cents. No discount to dealers. No subscription will be continued beyond the time paid for. Numbers lost in the mails are supplied free of charge, only when the sub- scriber makes application within two months following the receipt of the succeeding number. A charge is made for separates of articles, and none will be printed unless ordered. Address ERYTHEA, Berkeley, California, U. S. A. Pacific Press Pdblishiko Co. Oakland, Cal. 1898. NEW YORK BOTANICAL, ^ CiAXDEN NEW SPECIES OF PLANTS FROM MEXICO. By T. S. Brandegee. The following species are described raaiuly from a collection made by Mr. A, W. Anthony during the spring of 1897. All the islands off the west coast of Lower California were visited by him, those whose flora had already been collected, as well as others botanically unexplored. A landing was made at San Bartclome Bay and other coast localities, including San Jose del Cabo, I accompanied the expedition to the latter place and then returned, while Mr. Anthony visited the Revillagigedo group of islands 250 miles further south. This group consists of Socorro, Clarion, and San Benedicto, and the only knowledge of their flora had been obtained from a small collec- tion made by the All)atross in 1889.* Mr. Anthony's collections have added many species to the previously known flora of these islands and also to that of the better-known Cedros, Guadaloupe, and San Benito Islands. The coast from San Bartolome to below Magdalena Bay was dry as a drought of two years' duration could make it, and consequently only a small collection was made from this part of the Peninsula, but something was learned concerning the distribution of plants until then supposed to be insular. During the return trip many localities were revisited and plants flowering later in the season were collected. A great deal of credit is due to Mr. A. L. Stockton, who collected most of the specimens and dried them in a small schooner under unfavorable conditions of climate. A few of the following new species are from collections made by Dr. C. A. Purpus in tlie spring of 1898, about Santo Domingo, Calmalli and San Pablo of Central Lower California, and some were collected by myself in various trips into Baja California. Triumfetta Socorrensis. Frutescent, densely stellate- csj tomentose: leaves cordate, broadly ovate, acuminate, 4—6 cm. long 2^ and nearly as broad, on petioles 2 cm. long or less, whiter and more I ^^ *Proc. U. S. National Museum, Vol. xiii, p. 145. § Ebythe-\, Vol. VII, No. 1 [5 Januarv, 1899]. ; Z ERYTHEA. densely stellate tomentose beneath, serrate or dentate, sometimes indistinctly 3-lobed : flowers on short axillary peduncles; sepals 6-7 mm. long, linear, mucrouate; petals oblanceolate, shorter than the calyx; stamens 20: fruit 3-seeded, 3-celled, tomentose, 5 mm. long, armed with 12-20 hooked spines 6-7 mm. long. A handsome shrub growing upon Socorro Island. Anthony's No. 378. Dalea Purpusi. An intricately branched shrub 3-4 dm. high ; stems glabrous, slightly glandular dotted ; leaflets 3-5 narrowly or broadly obovate, obtuse or retuse, cuneate at base, 4-6 mm. long, 3 mm. wide, black glandular dotted below, silky pubescent: spikes broadly ovate, 15 mm. long, about 12-flowered; bracts soon decid- uous ovate-lanceolate, 5-6 mm. long, equaling the flower buds, sparingly glandular, silky pubescent and densely long ciliate on the margins, especially near the base; calyx silky-hairy, dotted with yellow glands between the prominent ribs, teeth linear, 8 mm. long, color, twice the length of the tube, plumose ; petals pink or rose keel and wings 5 mm. long, with claws of nearly the same length, round-cordate, 3 mm. wide pod silky pubescent and standard ; plumose along the dorsal margin and lower part of the style, glan- dular dotted, 1-seeded ; stamens 10. Plants with fruit and old flowers were collected by the writer in 1889, at San Estaban, Baja California, and by Dr. C. A. Purpus, in March, 1898, near Calmalli, not quite in bloom. In Proc. Cal. Acad., ser. 2, vol. ii, 147, it was referred to D. formosa Torr., which species in general appearance it much resembles. Dalea Anthonyi. Frutescent, erect-spreading, growing in dense clumps one meter in height and diameter, glabrous excepting a few silky hairs about the calyx teeth and midrib of the leaf; leaflets 6-10 pairs, 3-4 mm. long, oblong, obtuse, glandular below and on the margins; stipules setaceous; peduncles much longer than the leaves : heads rather densely flowered, 5-6 cm. long ; bracts longer than the calyx ; calyx 3-4 mm. long, glandular between the prominent ribs, teeth triangular, acute, the lower much longer, equaling the body of the calyx : corolla violet, standard one-third longer than the calyx, wings twice as long, keel three times as long pods, 1-seeded, smooth, longer than the calyx. Common about Sau Jose del Cabo, the finest plants growing in NEW PLANTS FROM MEXICO. 3 large clumps on the "sandwash " along the river. Although nearly related to D. Parryi T. & G. and especially to D. divaricata Benth. it seems to be specifically distinct. From D. divaricata it is easily distinguished by its acuminate calyx teeth, its more numerous glands, lai'ger leaves, and more robust erect habit. It is No. 129, Proc. Cal. Acad., ser. 2, vol. iii, 126. Anthony's No. 352. Vernonia littoralis. Frutescent; stems brown, striate, slightly pubescent, more so above; leaves ovate-acuminate, abrupt or cuneate at base, denticulate with excurrent veinlets, slightly pubescent, 4-8 cm. long, 3-5 cm. wide on petioles 1-2 cm. long; inflorescence axil- lary and terminal, the axillary corymbs as long as the leaves and bearing a few small leaves ; heads 7 mm. high on pedicels of the same length or shorter, 7-flowered; involucre broadly turbinate; scales imbricated, the lower minute, the succeeding ones ovate- acuminate, the upper linear, obtuse, all ciliate-pubescent, chartaceous, with an evident mid-nerve; tube of the corolla slender, ampliate above; pappus double, the outer copious, of very narrow palese nearly the length of the 2^-mra.-long akene, the inner 4-5 times longer; akenes broadly turbinate, smooth, obtusely 4-angled (with several more or less indistinct intermediate ones. Collected on Socorro Island by A. W. Anthony not in sufficient quantity for distribution. Eupatoriiim Purpusi. Herbaceous, 4-5 dm. high, glabrous except a slight pubescence on the upper part of the stems; leaves opposite, 3-uerved at base, membranaceous, ovate, sometimes cordate, sometimes truncate at base, glabrous, crenate-serrate, acun)inate, the largest 4-6 cm. wide, 9-12 cm. long, including the 3-6 cm. long petiole; inflorescence corymbose, heads on pedicels 5-10 mm. long, about 75-flowered, 8 mm. high and broad; bracts narrowly lan- ceolate; scales of the involucre of equal length, linear-acuminate, 2—3 ribbed, equaling the corollas and pappus; corollas tubular, ampliate above, purple or whitish, the lobes slightly pubescent; akenes linear, 2 mm. long, sharply angled, smooth and glabrous, contracted above and tipped with a thickened ring; bristles of the pappus few and very slender, extremely deciduous. Collected by Dr. C. A, Purpus, at San Pablo, Baja California, in 1898, and by the writer at the same place in 1889. Var. monticolum. Leaves broadly cordate-ovate, with lower part 4 ERYTHEA. of stems pubescent, upper portion, pedicels and involucres so gland- ular-viscid as to catch numerous small insects; akenes pubescent on the angles and somewhat so on the faces, scarcely contracted under the indistinct callous ring; heads whitish and sometimes with a purple tinge. High mountains of the Cape Region, Baja California. Perhaps this variety may prove to be a distinct sj)ecies, Eupatorium peninsulare. Shrubby, 1-2 ra. high, glabrous; leaves opposite, halberd-shaped or hastate, acuminate, more or less crenate-serrate, abrupt or cuneate at bas'^ the largest 10-12 cm.