■•^ 





t ■ 



. -s 



V. 



pla^;t.t; wrigiitian.^. 



39 



not in all respects well described by Kunth. The stigma is open and cucnllatc 

 in the centre ; the porrect lower lip tcrcte, short, and with a capituliforni paplllose 

 apex : the upper is very short and dentiform, and barbate with a penicillate tuft of 

 hairs, which Kunth everlookcd. Tlie wings in our plant arc a little morc obovate. 

 FloAYers about as large as those of P. Austrlaca, in equally lax spikes or raccmes, 

 greenish-white. Crest of four 2-parted thickish filiform processes, of which the 

 lateral adhere to the galca, the divisions simple, or somctimes two-lobed at the 

 apex. Stamens 8. Capsule oblong, slightly cmarginate, glabrous, mcmbranaceous, 

 little longer than the persistent wings. Seed cylindrical, hairy, with a smooth and 

 prominent papilliform chalaza. Caruncle unilatcral, half the length of thc sccd, 

 narrow, two-lobed, the lobcs linear. The slender stems and branches are much 

 anirled ; the leaves from 3 to 5 lines lonj?, seldom half a line broad, thickish, rigid, 



^xv.v... ...-^ ^v.«.v,^ C3 



pointed. 



101. P. MACRADENiA (sp. uov.) : fruticosa, humiUs, pubc vclutina cinerea; rnmis 

 fasciculatis adsccndentibus e caule crasso procumbente usque ad apicem confertc fo- 

 liosis flexuosis ; foliis altcrnis parvis oblongis vel oblongo-Liuccolatis obtusis muti- 



bus solitariis 



imberbi nuda 



is (more Tagetis) pellucido-punctatis ; 

 peduncuhatis ; pedunculo cbractcolato 

 issimo caruncula mitriformi pubcscent 



ca- 



structo. — - Hills at the head of the San Felipe; July. Also on the Kio Grandc, 

 in Southern Texas. — This well-marked specics is manifestly relatcd to the P. glan- 

 dulosa, H.B.K., which has obovate, mucronate, and minutely pubescent lcaves, 

 dotted with much smaller pellucid glands than ours. The whole structure of the 

 flower and fruit accords almost exactly with the figures of Kunth, exccpt that the 

 narrow lateral petals are not contracted below, the minute upper lobe of the stigma 

 is emarginate, the seed is more villous, and its short caruncle pubesccnt. As in P. 

 glandulosa, the calyx is deciduous, The capsule is ovate, emarginate, cinereous, and 

 often dotted with glands. The branches are about a span long, from a woody pro- 

 cumbent stem, thickly beset with leaves which are but two orthree lines in leugth: 

 the glands are conspicuous on the lower surface, and appear blackish by reflected 

 light. — It belongs to the same section as the foUowing species. 



102. P. LiNDHEiMERi ( Gmv, Pl. Lindh. % ^. 150): pubescens; cauUbus e radice 



ceis retic 

 lanceolat 



lignosa rubra plurimis foliosis diffusis ; foliis alternis subsessiHbus 



pidatis, imis obovatis, cseteris gradatim 



umve lateraUbus laxifloris ; rhachi 



to 



flexuosa bracteis 3 parvis ad nodos persistentibus squamosa ; pediceUis brevissimis ; 

 sepalo superiore bracteiformi a flore subdistante aUs spathulatis vix dimidio brevio- 

 re; carina imberbi crista calcariformi aucta; capsula eUiptica utrinque emargi- 

 nata puberula sepalo superiore persistente (ca^teris deciduis) stipata ; 



bi 



semme sericeo 



dimidio breviore. — Rocky hiUs and cUffs, Western Texa 

 to the San FeUpe, and south to the Rio Grande. — I have completed the specifi 

 character from Mr. AVright's specimens, which have mature fruit 



103. P 



basi suffrutescente diffusis 



bescentibus: foUis late ovatis ovato-oblongisve plcrisque obtusis 3-5-pUnervns mar 



» 



■a 



-'' 



# 



