of certain Genera in the Flora Peruviana. 273 



I shall now proceed to give the characters and description of 

 TaJhUa, and of the species already ascertained to belong to 

 it. 



TAFALLA. 



Bacchabidis sp. Lam. Pers. 



Molina sp. Ruiz et Pavort. 



Syst. Linn. SYNGENESIA POLYGAMIA SUPERFLUA. 



Ord. Nat. COMPOSITE, Adam. Brown. 



Fam. Inule-iE, Cass Trib. GnaphaliEjE. 



Char. Essent. — Involiicrum scariosum, imbricatum. Receptaculum nudum. 

 FloscuU tlioici ; masculi infundibulitijrmes, 5-dentati ; fasmi-nei filifornies, 

 limbo 5-fidi. Antlterce basi bisetosse. Pappi masculi radiis apice peiii- 

 cillatis ; foeminei capillaceis. 



Descr. — Capilula dioica ! Involiicrum polyphyllum, imbricatum : sguamis sca- 

 riosis, cartilagineo-membranaceis, coloratis. Receptaculum nudum, scro- 

 biculatum. FloscuU indefiniti; masculi infundibuliformes, fauce dilatati, 

 limbo 5-fido, laciniis eUiptico-oblongis, obtusis, nervis primariis margine 

 incrassatis ; fieminei filiformes, ima basi ventricosa callosa, limbo 5-fidi, la- 

 tere interiore profundiusfissi: /«c»»'js linear! -angustissimis,subDequalibus, 

 erectis. Stamina inclusa : Jilamenta capillaria, glabra ; articulo superiors 

 brevi, teretiusculo : antherce in tubum coalitte, basi bisetosfe, setis ramu- 

 losis, vix phimosis, appeudicula ovata terniinatje. Stigma masculis in- 

 clusum, clavatum, bilobum, truncatum, minute papillosum; fcemineis ex. 

 .sertum, bipartitura : segmentis semicylindricis, obtusis, recurvatis, glabris. 

 Achenia oblonga, subpentagona, glabra, basi umbilico calloso prominenti 

 foraminulo verticali perforate iiistructa : disco epigyno planiusculo, vix 

 dilatato. Pappi radiis duplici ordine copiosissimis ; masculi apice clavato- 

 penicillatis ; foeminei tenuissimis, capillaceis, scabris, ima basi connexis, 

 involucro longioribus. 



Plantae (Peruvianse) suffniticosce, Thujte v. Lycopodii /a«e. Folia alterna, ses- 

 silia, disticha, parva, adpresse equitantia, carinata. Capitula solilaria, ses- 

 silia, foliisfert immersa, axillaria et terminalia. Involucrum niasculinum 

 subrotundum, squamis cartilagineis, lamina rotundata terminatis ; foemi- 

 neum ohlongurn, squamis lanceolatis, acuminatis, membranaceis, subpellucidis. 

 Pappus cinereo-lutescens, supersistens ; foemineus pallidior. 



1. T. thyoides, foliis lanceolatis, antherarum appendicula acuminata. 



Baccliaris tliyoides, Lam. Encycl. 2. p. 90 — Illustr. t. 697 Persoon 



Syn. 2. p. 423. Hook. Bot. Misc. 2. p. 224. t. 93. 

 Molina incana, Ruiz et Pavon Syst. Veg. Fl. Pemv. et Chil. 1. p. 211. 

 Hub. In Pcruvite alpibus ad Pillao vicum, versus Silcav tractum. 



Ruiz et Pavon. ]y. Vitlgo Palmito Floret a Novembri ad Aprilem. 



(V. s. sp. in Herb. Lamb.) 



Planta suffruticosa, spithanifea, aut sesqui v. tripedalis, erecta, ramosa, ni- 

 veo-lanuginosa. Ramuli sparsi disticho niodo dispositi, lineares, obtusi, 

 complanati. Folia alterna, sessilia, semiamplexicaulia,' disticha, crebre 

 adpresseque equitantia, lanceolata, obtusa, compressa, carinata, integer- 

 rima, marginibus conniventibus, membranaceis coriacea, supra concava 

 dense niveo-lanata, subtus demiim glabra, nitida, viridia, 3-5 lineas longa, 

 versus basin caiihs sparsa. Jnvolwri masculi squamis 12, subtriplici ordine 

 dispositis, obhnigis, scariosis, cartilagineis, nitidis, flavicantibus, apice la- 

 mina rolundala, dilatata, fuscescenti, concava, levilcr erosd auctis ; /ami. 



