10 TLLECEBRACEZ. 
1. PENTACAINA. 
Pentacena, Bartl. in Pres], Reliq. Henk. ii. p.5; Benth. et Hook. Gen. Plant. iii. p. 14. 
Two or three herbaceous species, restricted to Western America, and ranging from 
Oregon to Chili. | 
1. Pentacena polycnemoides, Bartl. in Presl’s Reliq. Henk. ii. p. 5, t. 49. f. 1. 
Pentacena ramosissima, Hook. et Arn. in Hook. Bot. Misc. iii. p. 338. 
Paronychia ramosissima, DC. Prodr. iii. p. 372, et Mém. Paronych. t. 4. 
Acanthonychia ramosissima, Rohrb. in Mart. Fl. Bras. xiv. 2, p. 249, t. 56. 
Loeflingia ramosissima, Weinm. in Flora, 1820, p. 608. 
Paronychia polycnemoides, Schl. in Linnea, xiii. p. 407? 
Pentacena polycnemoides, Walp. Rep. i. p. 261? 
Cardionema multicaule, DC. Prody. iii. p. 373, et Mém. Paronych. t. 1? 
OreEGon to CaLirornia.—NortH Mexico, region of San Luis Potosi, 6000 to 8000 feet 
(Parry & Palmer, 64); Sourn Mzxico, Real del Monte (Coulter, 693), foot of the peak 
of Orizaba (Schiede).—Co.omBia to Curt, Buenos Ayres, Urveuay, and Sourn Brazit. 
Hb. Kew. 
2. ACHYRONYCHIA. | 
Achyronychia, Torr. & Gray in Proc. Am. Acad. vii. p. 330; Benth. et Hook. Gen. Plant. iii. p. 15. 
Diminutive herbs. Two species known, the present and one found in California and 
New Mexico. 
1. Achyronychia parryi, Hemsley, Diag. Pl. Nov. pars 2, p. 36. 
Glabra, glauca, foliis lineari-lanceolatis vel oblongis apiculatis, floribus in axillis foliorum fasci- 
culato-cymosis, perianthii subcarnosi tubo turbinato, lobis oblongo-ellipticis late scarioso 
marginatis, tubo subzquilongis, staminibus 5 valde perigynis staminodiis oblongis alternan- 
tibus, ovario 2—4-ovulato. 
Herba perennis, glabra, glauca, ramis gracilibus, 4-6-pollicaribus. Folia sessilia, lineari-lanceolata, 
oblonga, vel interdum fere oblanceolata vel oblonga, 4-8 lin. longa, apiculata, stipulis scariosis, 
amplis. Flores vix sesquilineam longi, in axillis foliorum fasciculatim cymosi, brevissime 
pedicellati, cymis densis quam folia triplo brevioribus; perianthii subcarnosi tubus turbinatus ; 
lobi oblongo-elliptici, late diaphano-scarioso-marginati; stamina 5, valde perigyna, cum stami- 
nodiis oblongis tenuissimis alternantia; ovarium breviter stipitatum, 2—4-ovulatum, stylo 
filiformi, stigmate obscure trilobo. Capsule (immature) trivalve, 1-3-spermee.—Achyronychia 
palmeri, Hook. f. in Benth. et Hook. Gen. Plant. iii. p. 15. 
Nort Mexico, in the region of San Luis Potosi, at 6000 to 8000 feet (Parry & 
Palmer, 53). Hb. Kew. 
3. PARONYCHIA. 
Paronychia, Juss. in Mém. Mus. Par. ii. p. 8389; Benth. et Hook. Gen. Plant. iii. p. 15. 
About forty herbaceous species, inhabiting the Mediterranean region, North Africa, 
Arabia, and America; one has been found in Angola. 
