20 POLYPETAL:;E. 
14. Cleome ($ Physostemon) mexicana, n. sp. 
nn ana strigillosa, ramis gracilibus, foliis simplicibus crimi 
mucronatis, floribus parvis solitariis axillaribus, wes folis squi- 
ongis, capsulis eltoideis, seminibus 4 rugosis tubercula 
Mexico: in colliculis arenosis maritimis Oaxacm, Galeoth 3194. 
(Hb. Kew 
15. Helianthemum argenteum, n. E 
Fruticosum nanum dense ram s tenuibus sinuosis, foliis 
confertis vix patentibus, floribus dimorphis vel fortasse trimorphis 
longiuscule pedicellatis vel fere sessilibus 
exico: in regione San Luis See, alt. 6000 8000 ped. Parry et 
Palmer, 29. (Hb Kew.) 
16. Helianthemum patens, n. sp. 
Fruticosum nanum diffusum puberulum, ramis Ee rectis, 
axillaribus, petalis 5 quorum 2 inzqualiter (an semper?) bilobis, sta- 
minibus circiter 12, filamentis filiformibus, seminibus conoideis pune- 
atis. 
Mexico: in regione San Luis Potosi, alt. 6000-8000 ped., Parry et 
dde. 30. (Hb. Kew.) 
17. Viola flagelliformis, n. sp. 
Caulescens hirsuta, pilis albidis patentibus, caulibus elongatis peda- 
libus vel tra, foliis longe petiolatis orbiculari-cordatis remotiuscule 
i l i ili atis, floribu 
0, 
pendicibus brunneis ovato-ellipticis, degens sepe in stylo clavato glabro 
basi vix curvato. 
Mexico: Palmer, 1033. (Hb. Kew.) 
18. Viola barroetana, Schaffner, MSS. in Hb. Parry. 
Acaulescens parva glaberrima vel minutissime papillosa Ferca foliis 
longe graciliterque petiolatis ovato-oblongis obscure calloso-den ticul 
eom v tem caesis fimbriatis, pedunculis quam folia loigiortiu 
1$ sparse fimbriatis, floribus flavis parvis, petalis obovatis 
uemes 2 la lelsuiius intus basin versus burbnds, stylo basi curvato 
clavato. mute mes hirsuto 
Mexico pue s Luis Potosi, alt. 6000-8000 ped., P, 
Pulncs x t^p ped. Parry et 
19. Viola ——— 
 Rhizoma elongatum d , foliis densissime confertis ] 
ovato-ellipticis vel re leviter cordatis remotiuscule nee. 
serratis brevissime puberulis, petiolo alato, MEpul eor scariosis ferrugineis 
