412. Solidago stricta, Ait.,

=

Solidago neglecta, Torr. & Gr.

414. Solidago Virga-aurea, L., var. humilis, Gray,

Solidago humilis,

439. Aster miser, L., (Ait. of Gray's "Manual"), = Aster vimineus, var. foliolosus, Gray.

440. Aster simplex, Willd.,

442. Aster carneus, Nees,

=

(?)

Aster paniculatus, Lam.

Aster salicifolius, (Lam.) Ait.

443. Aster æstivus, Ait.,= Aster junceus, Ait.

445. Aster puniceus, L., var. vimineus, Torr. & Gray, = Aster puniceus, L., var. lucidulus, Gray.

449. Diplopappus linearifolius, Hook., Aster linearifolius, L.

=

450. Diplopappus umbellatus, Torr. & Gray,

Aster umbellatus, Mill.

451. Diplopappus cornifolius, Darl., = Aster infirmus, Michx.

venosus, Gray.

523. Hieracium venosus, L., var. subcaulescens, Gray,

526 Taraxacum Dens-leonis, Desf., Taraxacum officinalis, Weber. 529. Lactuca Canadensis, L., var. integrifolia, Gray, Lactuca integri

folia, Bigel.

=

530. Mulgedium acuminatum, DC., Lactuca acuminata, Gray.

531. Mulgedium Floridanum, DC.,

=

Lactuca Floridana, Gærtn. 532. Mulgedium leucophæum, DC.,= Lactuca leucophæa, Gray.

533. Nabalus albus. Hook., Prenanthes alba, L.

Mill. of Syn., Fl. of N. A. This change has been pointed out

by Mr. Deane.

832. Quercus stellata, Wang.,

Quercus obtusiloba, Michx., as adopted

by Sargent in his Forest Trees of N. A.," vol. ix, Tenth Cen

sus of United States.

837. Quercus Muhlenbergii, Engel, Quercus prinoides, Willd., as adopted by Sargent.

1101. Vilfa aspera, Beauv. Sporobolus aspera, Kth.

1124. Tricuspis seslerioides, Torr., Triodia seslerioides, Vasey.

1129. Glycera aquatica, Smith, Glycera arundinacea, Kth.

1140. Eragrostis poroides, Beav., Eragrostis minor, Host.

1141. Eragrostis poæoides, var. megastachya, Gray, Eragrostis major, Host.

1165. Gymnostichum Hystrix, Schreb., Asperella Hystrix, Willd.

26. Aconitum uncinatum, L.

Near Clifton Station, Va., Sept. 20, 1885, by Prof. Ward.

78. Thlaspi arvense, L. Field Pennycress.

Below St. Elizabeth's, May 18, 1884, by Prof. Ward.

106. Silene nivea, DC.

Alexander's Island, June 25, 1885. Mr. J. A. Allen.

300. Drosera rotundifolia, L.

Sarracenia Swamp, May 10, 1885; also at Fort Ethan Allen, by Mr. William Palmer.

304. Callitriche Austini, Engelm.

Brightwood, May 16, 1885. Mr. J. A. Allen.

415. Solidago rigida, L.

Woodley Park, in fruit, Oct. 18, 1885. Prof. Ward and myself.

551. Gaultheria procumbens, L. Wintergreen.

Found on the Mt. Vernon estate, Va, in October, 1884, by Mr.
William Hunter.

589. Asclepias rubra, L.

Vicinity of Falls Church, Va., Miss M. A. Hayes, July 11, 1885.

599. Enslenia albida, Nutt.

Alexander's Island, June 25, 1885.

Mr. J. A. Allen. Below

Chain Bridge, in fruit, Sept. 12, 1885. Prof. Ward and myself.

627. Lithospermum canescens, Lehm.

North side of Woodley Park Road, first bend above the bridge.
Collected May 17 and 21, 1884. Prof. Ward.

629a. Heliotropium Europæum, L. Heliotrope.

Alexandria, Va., near the ship-yard, July 4, 1884. Prof. Ward.

672. Buchnera Americana, L.

Near Clifton Station, Va, Sept. 20, 1885. Prof. Ward.

73-a. Scutellaria parvula, Mx. Scullcap.

Kengla's Woods, June 4, 1884. Prof. Ward.

741. Plantago cordata, Lam.

Poplar Point, on the Eastern Branch, October 26, 1884.

Prof.

Ward and myself. Important on account of its greater accessibility.

So5. Cacalia reniformis, Muhl.

Alexander's Island, June 25, 1885. Mr. J. A. Allen.

835. Quercus Michauxii, Nutt.

Near "Owl Bridge," (Northwest Branch). A large fine tree, quite typical. Found by Mr. H. W. Henshaw and myself, September 11, 1885.

849. Quercus heterophylla, Mx.

A fine tree of this species was discovered near Convalescent Camp, Virginia, June 29, 1884, by Prof. Ward. In fine fruiting condition, October 5, 1884. The affinities of this specimen with Q. Phellos are closer than in any of the forms hitherto found. The leaves resemble in almost every respect those which I collected from the tree now standing in the Bartram estate, Philadelphia, south of the mansion, and which is said to have grown from an acorn of the

original Bartram Oak planted by the discoverer." Prof. Ward.

874. Arisæma Dracontium, Schott.

Analostan Island, June 20, 1885. Titus Ulke.

918. Corallorhiza odontorhiza, Nutt. Coral-root.

Found by Mr. Benj. Miller in Kengla's Woods, near the Foundry Run, May 7, 1884, and therefore constituting a case of the vernal blooming of an autumnal species. "I visited this spot in company with Mr. Miller on June 4, 1884, and found the plant nearly extinct. It had died down and withered away without fruiting. On September 28, 1884. I found it in abundance along the Northwest Branch of the Potomac."-Prof. Ward.

919. Corallorhiza multiflora, Nutt.

A single specimen, the second ever seen here, was found on the
Northwest Branch of the Potomac, Sept. 28, 1884.

946. Smilacina stellata, Desf.

High Island, May 11, 1885. Four or five fine specimens found.
Hugh M. Smith.

951. Erythronium albidum, L.

Found at

Vis-a-vis" Landing, opposite Three Sisters, April

26, 1885. Mr. H. M. Smith.

1211. Tsuga Canadensis, Carrière.

Left bank of Pope's Head Creek, one-half mile below Clifton
Station, Va., Sept. 20, 1885. Prof. Ward.

1216. Pellæa atropurpurea, Link.

Found June, 1885, by Mr. H. M. Smith, on the outer walls of the causeway connecting Analostan Island with the mainland. Plants numerous.

1223. Asplenium augustifolium, Michx.

Found at head of Asplenium Run, above Aqueduct Bridge, Sept. 19, 1885. Mr. H. W. Henshaw and myself.

1226. Camptosorus rhizophyllus, Link.

Near Burnt Mills, Md., July 1, 1885. Mr. H. W. Henshaw.
Also High Island, April, 1885. Mr. J. A. Allen.

1220. Woodwardia Virginica, Smith.

Below the Reform School, Aug. 19, 1885. Mr. Wm. Palmer and myself.

VI. SPECIES EXCLUDED.

172 Vitis vulpina, L., = Vitis riparia, Michx.

The specimens mentioned in the "Flora" that were referred to this species, were collected in flower May 22, 1881, and in young fruit June 4, 1881, at Sandy Landing, Md. Specimens in mature fruit collected Sept. 12, 1885, on the rocks below Chain Bridge. From characters furnished by the seeds and the diaphrams separating the nodes of the stem, as pointed out by Dr. Engelmann, this is referred to the V. riparia, Michx.

220. Lespedeza violacea, Pers.. L. reticulata, Pers.

This species has been compared at the Gray Herb. by Mr.
Walter Deane, and referred as above.

973. Juncus marginatus, var. bifloms, Engl., - Juncus marginatus,

Rostk.

Compared at the Gray Herbarium by Mr. Walter Deane who pronounces this to be the type and not the variety.

=

1251. Lycopodium complanatum, L., var. sabinæ folium, Spring., Lycopodium complanatum, L.

The forms referred to this variety were collected two miles north of Bladensburg, in young fruit, July 20, 1879, and at Clifton Station, Va., Oct. 12, 1884, by Prof. Ward. These have been submitted to Prof. L. W. Underwood, of Syracuse University, and he pronounces them all to be complanatum. This variety, or, as it has been lately known, species, sabinæfolium, is distinguished by having the stems leafy to base of spikes, or nearly so, elongated,. creeping, usually underground; branches erect, short, dichotomous; leaves 4-rowed, apparently terete.

In complanatum the stems are flattened, leaves of two forms, imbricated-oppressed in 4 ranks. These specimens are certainly anomalous in having the stems creeping underground, but otherwise they agree well with the type.