17 



POLYGON ACEAE: POLYGONUM. 



18 



pollicares, conMnuae, densiflorat. Calyx 5-partltus (ex Kunfh. I. c 

 4-partitus, qualem nunquam invcni). Nucula laevis, nitida, saepius trl- 

 gona quam lenticularis , y\ lin. longa. 



Crescit in hutnidis c. in ipsis aquis stag nanli bus Alexin, Co- 

 lumbiae, Guyanae, Ptruviae, Chile, verisimiliUr etiani Brasiliae. 



9. POLYGONUM HYDROPIPEROIDES Mx. caule glabro; 

 ochreis iongis, angustis, adpresse pilosiusculis , ore sen's tenui- 

 bus inediocribus dense ciliato; foliis subsessilibus, anguste lan- 

 ceolatis, utrinque attenuatis, adpresse pilosiusculis demum gla- 

 brescentibus; spicis geminis v. subrucemosis , tinearibus v. sub- 

 filiformibus, erectis, laxiusculis, basi interruptis; bracteis sub- 

 irabricatis breve ciliatis; pedicellis demum exsertis; calyce eg Ian - 

 duioso; staminibus 8 stvloque semitrifido inclusis; nucula trigont, 

 laevissima, nitida, faciebus late ovatis. *) 



Polygonum hydropiperoides Michaur Flor. Bor. Amer. I. 

 239. Bigelow FL Button. 1. 156. (non Pursh.) 



Polygonum mite Persoon Enchir. I. 440. {non Schrank.) 



Polygonum australe Thieh. in Vert. Enchir. 1. 440. (fide 

 Herb. DC.) 



Polygonum pnnctalum Schwemite Mss. in Herb. Ledebour. 

 (nee Ell J 



Polygonum Persoonii Engelmann Mss. in Herb. Ledeb. 



ft. virgatum nob. ochrearum bractearumque setis longiori- 

 bus (illis 3 — i lin., his I — 2 lin. Iongis); foliis utrinque dititius 

 pubescentibus. 



Polygonum virgatum Cham, el Schlecht. in Linnaea HI. 

 45. (cum descr.) 



Cavms adscendens, gracilis. Ochbkab 6 — 8 lin. Ion gar, tarde 

 glabresceni.es, supra basin foliigerae (ciliis in a. 3—3 lin Iongis). 

 Folia 2,-5 poll, longa , 2 5 lin. lata, deniqiie nonnunqnam stiluus 

 v. utrinque excepto margine nervoque glahrata. Spioas 1 -■ 2-pollica- 



*) Species a (fines in permultis mundi partibus occurrences, forsan 

 etiam in Brasilia invenfendac, sunt: 



Polygonum minus Uuds. caule procumbente v adseendente, 

 gracili , glabro; ochreis pilosiusculis, prope basin foliigeris, ore 

 setis tenuibus loogiusculis dense ciliato; foliis linearibus lanceo- 

 latisve , bast rotundatis v. rarius contractu- attenuatis, margine 

 nervoque scabriusculis; spicis subracemosis, filiformibus, ereclis, 

 interruptis v. subcontlnuis, laxiusculis; bracteis breve turbina- 

 tes, truncatis, dense piloso-ciliatis, pedicellos superantibus ca- 

 lyceque 5-partito eglandulosis ; statninibus 5 (raro H) stvloque 

 % — 3-partito inclusis; nuoula parva, biconvexa (raro 3-gooa) 

 laevi , nitidissinia 



Polygonum minus Hudson. VI. Angl. T. 148. Ait. Hort. 

 Kew. ed II. 418. 



Polygonum pusillum Lam. Ft. Fr. Ill 235. 



Polygonum strictum Alt. Pedem. n. 2051. t.68.f.2. Meisn. 

 in Watt. PL As. Rar. III. 57. 



Polygonum serrulatum Lag. caule adseendente , gracili, 

 glabro; ochreis pilosiusculis, longe setoso-ciliatis, supra basin 

 foliigeris; foliis lanccolatis linearibusve , attenuato - elongatij, 

 basi vix angustata obtusis emarginatisve, margine nervoque sca- 

 briusculis; spicis subracemosis , continuis, laxiusculis; bracteis 

 contiguis anguste turbinatis, ciliolatis calyceque 5-partito eglan- 

 dulosis; pedicellis longiuscule exsertis; staminibus 6—8 f raro 5) 

 styloque 8 — 3-partito inclusis ; nucula hinc plana inde convexa 

 v. obtusangolo-trigona , laevi, nitidissinia. 



Polygonum serrulatum Lagasca Nov. Gen. et Spec. 14. ». 161. 

 Polygonum macrochaetum Miguel in Linnaea XVIII 248.? 

 (non Fresen.) 



Obs. A proximo P. miti Schrank. disUnguitur praecipue 

 ochrearum ciliis riuplo longioribus et nucula plus minus trigona.. 



res; bractcm turbinatis, t 4-florta, superloribus eublmberbibus , rg- 

 dicrllis demuin longiuscule exsertis. C\altx fractifer I lin. longuc, 

 elliptirus 



Crescit in hutnidis t\ ipsis aquis stagnantibus Amerieae tempe- 

 ratae et tropicae totius; a. in America boreali , Mexico, Surinamo- 

 Wullschlaegel, in Chile et Nova Holiandia ; f. in Brasilia meridio- 

 nali : Sellow ; in montibus Serra dot Orgaos , prnv. Rio de Janeiro i 

 Gardner n. 599 : et in Chile, Mexico passimque in America boreali, 

 praecipne partibus austratioribus. 



10. POLYGONUM ACRE H. B. K. glabrum, undlqae gtu- 



dulis spssilibus fuscis pellueidis plus minus conspersum; ochreis 

 an^ustis, breve setuloso- ciliatis ; foliis lanceolalis, acuminalis, 

 utrinque glabris v. nervo scabriusculis , margine minute ciliola- 

 tis; spiris I — 3, erectis, filiformibus, basi interruptis*, bracteis 

 subcontiguis, anguste turbinatis, horuontaiiter trunratis, ciliatis 

 v. subnudis; pedicellis demum exsertis; calyce glanduloso; sta- 

 minibus 8 stvloque 3-partito inclusis; nucula trigona, nitida, ob- 

 solete punctiruiala. 



Tabula nostra V. 



Polygonum acre H. B. K. Nov. Gen. //. 179. (non Lam.) 

 Meisn. Polyg. Prodr. 77. Cham, et Schl. in Linnaea 111. 45. 



Polygonum hydropiperoides Pursh. Ft. Am. sept. /. 270. 

 [non Michx.) 



Polygonum punctulum Elliot. Sketch 1. 455. 



Polygonum antihaemorrhoidate Mart- var. aqualile et ripa- 

 rium in Bene II. 550. Linnaea 1830. Lift 41. Marl. Syst. 

 mat. med. br 10. 



Caules erecti v. adscendentes, graciles, debiles, laxe ramosi. 

 Ochreae anguatae, tenerae, parce adpresso-pilosiusculae v. gla- 

 brae, senilis debilibos 1 3 lin. Iongis satis dense ciliatae. Folia 

 subsessilia, 2—5 poll, (plerumque 3 poll.) longa. 3 6 lin. lata, 

 utrinque attenuate , debilia , pellucido-pitnctala, excepto margine 

 constanter ciliolatn* scabriusculo glaberrima v. snbtus in nervo 

 senilis adpressis plus minus adspersa. Spicak 1-3- (rsro 3 -5-) 

 pollicares, gracillimac, braoteis pluriRoris, infimis semper plus 

 minus ciliatis, stiperioribus saepius subimberbihus. Calyx 1 lin. 

 longus. 



Admodum variat foliorum magnitudine, nervi glabritie v. sca- 

 britie , spicarum longitudine, glandularum in variis partibus copia, et 

 praecipue longitudioe ciliorum tarn ochr<*arum quam bractearum; — sed 

 hae varlationes per omnes gradus ludunt, iu ut varietates stabiles, 

 immo formae satis dennitae distingui non possinC. Martius taroen duas 

 varietates distinxit: 



a. aouatile statura graciliore, caule saepe radiennte, ramis 

 angulo angustiore exeuntibus strictioribus; foliis plerumque linea- 

 ribus vel lanceolato-linearibus aculis; ochreis angustioribus (scti- 

 geris aut submuticis); spicis subcontinuis vel basi interruptis. 



Tabula nostra V. Fig. I. 



p. RiPARiUM statura obesiorc, ramis patentioribus; foliis ple- 

 rumque lanceoiatis, lato-lanceolatis vel ovato-lanceolatis acumi- 

 natis; ochreis laxioribus vel subventricosis facilius laceris (cilia- 

 tis v, setigeris); spieis pluries interruptis. 



Tabula nostra V. Fig. IS- 



Polygonum marilimum Veil. FL Flum. IV. t. 39.? 



Habitat in arenosis humidis fossisque prov. Rio de Janeiro : 

 Pohl Herb. n. 163., Sellow, Gardner n. »40. 241. 599., Com. de Ra- 

 ben, /V. Herb. Fl bras, n 249.; Rio Maranhdo et Villa Boa; Pohl 

 n. 2400. 2515. 5555.; prov Bahiensis, Blanchet n. 297. 688. 1020., 

 Salzmaun n. 467. f ad ft. S. Francisci : M. ; in ripa flum. Ammxonum 

 prov Paracusis : M ; it* Brasilia tropica et meridionali : Sellow; 

 Rio Grande do Sul : M.; Buenos Ay res : Baclt n. 25.; et praeterea 

 in Chits, Peruvia , Columbia, Guyana, ins. Antiltanis , Guatemala, 

 Mexico et America) boreali. 



