180 CARYOPHYLLACE^. Arenaria. 



cicled in the axils, the root is annual, and the sepals are less strongly nerved 

 and less rigid than in A. stricia. 



il. A. Pitcher i (Nutt.! mss.): "erect and slender, glabrous, fastigiately 

 branched, few-flowered ; leaves linear-filiform, obtuse, not fascicled ; pedun- 

 cles slightly glandular-pubescent ; petals oblong, somewhat exceeding [near- 

 ly twice the lengtli of] the lanceolate strongly 5- [sometimes 3-] nerved se- 

 pals." Nuit. 



Plains of Arkansas, iViJi^aZZ / Dr. Pitcher! T ey.as, Drummond ! Dr. 

 Leavenworth ! — (J) Stem 3-6 inches high, with filiform branches. Leaves 

 ■very narrow but flat. — Nearly allied to A. patula, and also to A. tenuifolia of 

 Europe, as Mr. Nuttall very correctly remarks. 



- 12. A. patula (Michx.) : branched from the base, diffuse ; forks of the 

 cyme divaricate ; leaves linear, very narrow, obtuse, spreading ; petals spa- 

 tulate, emarginate, twice the length of the lanceolate very acute 3-5-nerv- 

 ed sepals.— yV/tc/tx. .' ji. 1. p. 273 ; DC. prodr. 1. p. 405. 



On rocks, Kentucky, Dr. Short! and mountains of Virginia, Prof. Ruff- 

 ner ! — @ ((2)'?) Stems weak, almost filiform, 6-10 inches long, glabrous 

 to the naked eye, but minutely glandular-pubescent under a lens. Cyme 4 or 

 5 to 20-flowered, much spreading : pedicels almost setaceous. Leaves often 

 slightly fascicled in the axils. 



-■'13. A. glabra (Michx.): csespitose, glabrous ; stems filiform, decumbent 

 at the base, 8-12-flowered ; leaves linear-setaceous, spreading; branches of 

 the cyme and very slender pedicels divaricate ; petals obovate-oblong, twice 

 the length of the oval, obtuse, membranaceously-margined, nerveless sepals.— 

 Michx. ! Ji. 1. p. 274 ; DC. prodr. 1. p. 407, not of Ell. or of Torr.fi. 



On rocks in N. Carolina, MtcZimf^c.' Schweinitzl Georgia, Le Conte ! 

 "Table Rock, Alabama," herb. Schweinitz ! — 11 Plant growing in dense 

 grass-like tufts : stems very slender, and commonly branched above, about 6 

 inches high. Leaves nearly half an inch long, almost setaceous. Pedicels 

 elongated, setaceous. Flowers smaller than in A. patula and A. GrcEnlan- 

 dica. — This Uttle known species appears to be confined to the more or less 

 mountainous portions of the Southern States ; the A. glabra of Elliott, grow- 

 ing in the low country being evidently Stellaria uniflora, Walt. 



14. A. GrcRiilandica (Spreng.) : csespitose, glabrous ; stems low, decum- 

 bent at the base, 1-5-flowered ; leaves very narrowly linear, obtuse;' pedicels 

 filiform, nearly erect ; petals obovate-cuneiform, entire or with a slight notch, 

 twice the length of the rather oblong, very obtuse, membranaceously mar- 

 gined, nerveless sepals. — Spreng. syst. 2. p. 402. Stellaria Groenlandica, 

 " Retz. fi. Scan.'' ; DC. prodr. 1. p. 39S ; Fl. Dan. t. . . Arenaria glabra, 

 Torr. ! fl. 1. p. 4:55 (excl. syn.) ; Bigel. ! fi. Bost. ed. 2. p. 180. 



Greenland, Vahl, in herb. Schw. ! Labrador, herb. Schweinitz! Cre- 

 vices of rocks, with alpine plants, on the summits of the M'hite Hills, New- 

 Hampshire, Boott ! Oakes ! Pickering ! of the Adirondack ! and Sha- 

 wangunk! Mountains, New-York. July-Aug. — It Stems very numerous, 

 about 3 (rarely 5) inches high. Leaves almost subulate, but obtuse, 3-5 

 lines long, erect or spreading. Flowers large for the size of the plant, larger 

 than those of A. glabra. Lobes of the disk from which the stamens arise 

 slightly thickened and glandular. — The identity of our plant with Stellaria 

 Groenkndica, first suggested by Dr. Pickering, is confirmed by a specimen 

 from Greenland in herb. Schweinitz, -so named by Vahl. 



15. A. brevifolia (Nutt. ! mss.) : glabrous, not csespitose ; stems filiform, 

 erect, simple, 2-5-flowered; leaves minute, erect (many times shorter than 

 the internodes), lanceolate-subulate, nerveless ; sepals oblong, obiuse, with 

 scarious margins, about the length of the 3-valved capsule ; petals obovate- 



