EVOLVixrs CONVOLVULACEAE. &43 



sepalis lanccolatis acuminatis sericeo-pilosis; corolla parva alba. © — Folia semipollicaria 

 subscssilia. — Affinis E. alpinoidi R. Br. — Crescit in campis Mexicanis ad ripas fluvii 

 Rio grande de Lerma prope Guadaiaxara, altitudine 3000 pedum. 



4. E. ALBIFLORUS Marlens el Galeotti 1. c. 259. — Caulibus caespitosis sericeo-villosis 

 foiiis subsessilibus approximatis oblongo-Ianceolalis, supra adpresse pilosis, subtus seri- 

 ceo-villosis; peduneulis axillaribus filiformibus unifloris, folia superantibus ; sepalis lan- 

 ceolalis amminatis sericeo-pilosis ; corolla alba infundibuliformi, extus villosula. O — 

 Folia semipollicaria, pedunculi subpollicares. — Affinis E. IiirsiUo H. B. Kth. — Crescit 

 in Mexico qrope Mextitlan et prope Zimapan, altitudine 4—5000 pedum. 



5. E. STRICTLS Bth. in Hook. Lond. journ. of bot. V. 354. — Caule rigido elongato, longe 

 sericeo-piloso; foliis dissitis anguste oblongo-lanceolatis, utrinque mollitcr et appresse 

 pilosis; lloribus in axillis superioribus sessilibus, supremis in spicam approximatis; sepa- 

 lis lanceolato-subulalis hirsutis, corolla tliniidio brevioribus, capsula duplo longioribus. 

 2J. — Pili caulis et foliorum paginae inferioris candicantes, foliorum superiorum et in- 

 florescentiae ferruginei, folia inferiora pollicc paullo longiora, 2—3 lin. lala, acula vel 

 cblusiuscula, spica foliosa basi inlerrupta, superne densa quinquepollicaris, corollae albae 

 7 lin. longae, calyces 3'/s lin. longi. — Crescil in Guiana Britannica prope Roraima. 



XXXIV. STYLISMA Rafin. 



(Choisy in DC. Prodr. IX. 450.) 



XXXV. (3790.) WILSOMA R. Br. 



(Choisy in DC. Prodr. IX. 450.) 



Tribus III. DICHONDREAE Choisy 1. c. 451. 



XXXVI. (3788.) DICIIOVDRA Forsli. 

 (Choisy in DC. Prodr. IX. 451.) 



XXXVII. (3789.) FALKIA Linn. /?/. 

 (Choisy in CC. Prodr. IX. 451.) 

 1. F. OBLONGA Bernhardi , Flora (B. Z.) XXVH. II. 830. - Foliis ovalo-oblongis, ^ — 

 Crescit in Promontorio bonae spei ad Umlaas river nd Port Natal. 



Tribus IV. CUSCUTEAE Choisy I. c. 4.52. 



XXXVIII. (3810.) CTSCUTA Tournef. 

 (Choisy in DC. Prodr. IX. 452. et 565.) *) 



Sectio I. Stigmatibus acutis aut clavato-incrassatis. 

 1. *C. MAJOR C. Bauh. — Choisy I. c. no. 2. 



,?. Pontica C. Koch, Linnaea XIX. 19. — Flores sessiles, capilula globosa ditissima et 

 approximata formantes, calyx urceolatus 4- rarius 5-apiculalus, corollae venlricosae 

 limbo plano deinde erecto aequalis, stamina exserta, styli duo arcuatim convergenles, 

 squamulae fimbriolulatae. — Crescit in regionibus Ponticis parasitica in Hypericis 

 et Crassulaceis. 



*) Monuit fruslra 111. Choisy, Cuscutas omnes, licet calycis, corollae et sligmatis 

 structura non parum inler se diversas, unicum tamen naluralissimumque efficere genus, ab 

 III. Pfeiffer nuperrime divisum: 



I. CUSCCTA Linn. (ex />. 

 Pfeiffer in Schlehti ei Mohl, Bol. Zcitung III. 673.) 

 Calyx monosepalus 4— 5-fidus vel 4— 5-lobus, stigmata linearia. Capsula circumscissa 

 bilocularis. 



1. ('. EVROPAEA L. — (An C. major Choisy?J — Pfci/fer l. c. — Caulis ramosus, 

 tubus eorollae cylindricus, limbwm 4- oel rarins 5-fidwn aequans, squamae erectae, 

 tubo adpressae, capsula obpyriformis, apice attermato vrod/ucla. 



