identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03FF87B5D34DFFD4A35756AE92BFFB48.text	03FF87B5D34DFFD4A35756AE92BFFB48.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Heteranthera missouriensis C. N. Horn 2020	<div><p>Heteranthera missouriensis C.N. Horn, sp. nov. (Fig. 1).</p><p>TYPE: U.S.A. KANSAS. Reno Co.:¼ mi E, 3 mi S Medora,abundant in small pool in sandhill area, plants in shallow water or stranded, 17 Aug 1977, Brooks 13349 (HOLOTYPE: BRIT [399736]!; ISOTYPES: BRIT [399803]!, KANU!, MO!, NY!).</p><p>Inflorescencia cum 5–13floribus pluribus exsertis supra spathum.Perianthium lavandulum usgue ad purpureum.Perianthi tubus 3–5 mm longus, perianthi lobus 3–4.5 mm longus; antherae in staminiibus lateralibus 0.5–0.8 mm longae, antherae in stamine centrali 1–1.3 mm longa.</p><p>Leaf blade rounded, apex obtuse, 2.6–4.4 cm long, 2.9–5.2 cm wide. Spathe 3.6–8.5 cm long. Inflorescence 3.7–9.5 cm long with 5–13 flowers, 0–6 of which are within the spathe; floral axis elongating such that most flowers are beyond the spathe apex. Perianth tube 3–5 mm long; perianth lobes lavender to purple, 3–4.5 mm long; lateral stamens 1–1.8 mm long, the anthers 0.5–0.8 mm long; central stamen 2–3.1 mm long, the anther 1–1.3 mm long. Seeds 0.6–0.8 mm long, 0.3–0.4 mm wide, with 9–12 wings. Chromosome number 2n = 32.</p><p>Phenology.— Flowering July to November. Inflorescences developing in one or two days. Individual flowers opening about two hours after dawn and wilting in early afternoon.</p><p>Distribution (Figs. 2, 3).—Roadside ditches, rice fields, and pond edges, 10–470 m; USA, Iowa and Nebraska south to Louisiana and Texas. Introductions have been recorded in Alabama, North Carolina and California.</p><p>Representative specimens. U.S.A. ALABAMA. Jackson Co.: wet depression in access road. Barger &amp; Taylor HC#619 (ALNHS, AUA,UWAL, AMAL). ARKANSAS. Ashley Co.: jct two roads 1.8 mi W of jct US 165, Thomas 97132 (MO, NLU, NY, TENN, UARK). St. Francis Co.: N of Cypress Creek, Denke1207 (MEM,MSU). CALIFORNIA.Glenn Co.: W of I-5rice field of organic grower, J.Lundberg s.n. (DAV). ILLINOIS. St. Clair Co.: lakes, Eggert s.n. (GH, MO, WTU). Union Co.: IL 3, 2.3 mi S jct AL 146, Hill &amp; Koontz 34266 (ILLS, NY, USF). KANSAS. Douglas Co.: 2 mi NE of Lawrence, McGregor 715 (KANU). Harvey Co.: 2 mi N of Burrton on Co. road then 3 mi E on dirt road, Horn 549 (AAU, EA, MO, NY, UNA). Jefferson Co.: 10 mi S of McLouth, Kansas Rockerfeller Tract, Brooks &amp; Seiler 5250 (KANU). Lyon Co.: McKinney Marsh, 1 mi W and 2 mi S of Neosho Rapids, Hauser 3157 (KANU). Pottawatomie Co.: Plum Creek, Gates 17560 (MO). LOUISIANA. Ouachita Par.: Ouachita Wildlife Management Area near Bayou Lafourche, Thomas 101069 (MO, NLU). MISSISSIPPI. Madison Co.: Barnett Reservoir, W of Safe Harbor Marina at Pearl River Waterfowl Refuge, Rogers 8784 (GH, MO, NCU, NY, SMU, USF). MISSOURI. Bates Co.: 1.5 mi W of Papinsville, Steyermark 21282 (F, MO). Boone Co.: Mo. Dairy farm pond, ca. 8 mi W of Columbia on Hwy 40, Christian s.n. (MO). Butler Co.: rice field on N side of US 60 between rt Z and rt 581, Horn 8804 (GH, MEXU, MICH,NASC,NBYC, NY). Christian Co.: 1.5 mi NE of Lindenlure, Palmer 64386 (MO, NLU, UMO). Jackson Co.: Atherton, common in Gaffner’s Lake, Bush 443 (MO, US), Sheffield, Bush 863 (BR, US). Newton Co.: 2 mi SW of Joplin, Palmer 53019 (F, MO, UMO). St. Charles Co.: 5 mi N of St. Peters, Steyermark 8914 (MO,UMO). NORTH CAROLINA. Wake Co.: lake at William B. Umstead State Park, Horn 21352 (NBYC). TENNESSEE. Shelby Co.: Meemen-Shelby Forest State Park, Bates 410 (MEM, MSU). TEXAS. Cameron Co.: Unit 1, Laguna Atascosa National Wildlife Refuge, Fleetwood 7052 (TEX,US).</p><p>Individual plants have rounded leaves with an obtuse to slightly acute apex, a floral axis commonly almost twice as long as the spathe with 5–15 flowers such that most flowers extend beyond the spathe tip. The perianth is a dark purplish color.</p></div>	https://treatment.plazi.org/id/03FF87B5D34DFFD4A35756AE92BFFB48	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Horn, Charles N.	Horn, Charles N. (2020): Two New Species Of Heteranthera (Pontederiaceae) In North America. Journal of the Botanical Research Institute of Texas 14 (1): 1-8, DOI: 10.17348/jbrit.v14.i1.886, URL: https://doi.org/10.17348/jbrit.v14.i1.886
03FF87B5D34EFFD2A34756FD90E2F9C3.text	03FF87B5D34EFFD2A34756FD90E2F9C3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Heteranthera pauciflora C. N. Horn 2020	<div><p>Heteranthera pauciflora C.N. Horn, sp. nov. (Fig. 4).</p><p>TYPE: VIRGINIA. CHARLES CITY CO.: shallow roadside pool NW of Harrison Point, 17 Aug 1938, Fernald &amp; Long 9015 (HOLOTYPE: GH!; ISOTYPES: F!, LP, PH!) .</p><p>Inflorescentia cum 3–6 floribus pluribus intra spathum. Perianthium pallidum lavandulum. Perianthi tubus 8–10 mm longus; perianthi lobus 5.5–7.3 mm longus;antherae in stamine laterali 0.6–1 mm longae,anthera in stamine centrali 1.3–1.9 mm longa.</p><p>Leaf blade rounded, acute to obtuse at apex, 3.5–5.2 cm long, 4.2–6.5 cm wide. Spathe 3.0– 5.7 cm long. Inflorescence 2.2–4.3 cm long with 3–7 flowers, 3–5 of which are within the spathe. Perianth tube 8–10 mm long; perianth lobes pale lavender to white, 5.5–7.3 mm long; lateral stamens 2–2.9 mm long, the anthers 0.6–1 mm long; central stamen 4.2–4.8 mm long, the anther 1.3–1.9 mm long. Seeds 0.8–1 mm long, 0.4–0.5 mm wide, with 9–11 wings. Chromosome number unknown.</p><p>Phenology.— Flowering July to November. Inflorescences developing in one day. Individual flowers open about three hours after dawn and wilt in early afternoon. Most commonly flowers do not elongate out of the spathe and are thus self-pollinated.</p><p>Distribution (Fig. 3).—Freshwater marshes and river margins typically under tidal influence, sea level to 20 m; USA, New Jersey to North Carolina.</p><p>Representative specimens. U.S.A. DELAWARE.[New Castle Co.]: near Wilmington, Canby 8491 (KANU). MARYLAND. Cecil Co.: White Swan Lake, ca. 2 mi SE of Chesapeake City, Long 41098 (PH). NEW JERSEY. Burlington Co.: South Branch of Pensaulan Creek, 0.25 mi S of Fork Landing, Trudell s.n. (PH). Camden Co.: along Delaware River off of NJ 543 in Pennsauken, Horn8614 (GH, MEXU, MICH,MO,NASC, NY, UNA). Gloucester Co.: Mathews Brook, West Woodbury, Long 26588 (PH). Salem Co.: 2 mi NW of Pedricktown, Fogg 7915 (GH, PH). NORTH CAROLINA.Bertie Co.: US 17 at Connie Creek,Roanoke River Swamp, Radford 5968 (NCU,SMU). Martin Co.: shallow pool edge of cypress-gum swamp near Welch Creek on US 64 at Washington Co. line, Radford 4586 (NCU, NY). Pasquotank Co.: 4.4 mi S of Weeksville, Ahles 48126 (FLAS, NCU, UC). Perquimans Co.: 1.6 mi NE of Bethal, then 1.2 mi E on dirt road, Ahles 48024 (NCU, SMU). PENNSYLVANIA. Philadelphia Co.: League Island Park, Hass s.n. (PH). VIRGINIA. Gloucester Co.: Beaverdam Lake off rt 606, Horn 12489 (GMUF, NY, UNA,WILLI); Newport News City, 200 ft from Mulberry Island Rd., Fort Eustis, Appler 828 (NCU,WILLI).</p><p>These plants have rounded leaves with an obtuse to slightly acute apex and the flowering axis is only about as long as the spathe and the perianth is a pale lavender color. The inflorescence has 3–6 flowers and typically only the terminal flower projects beyond the terminus of the spathe, so it may open (Fig. 1d).</p></div>	https://treatment.plazi.org/id/03FF87B5D34EFFD2A34756FD90E2F9C3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Horn, Charles N.	Horn, Charles N. (2020): Two New Species Of Heteranthera (Pontederiaceae) In North America. Journal of the Botanical Research Institute of Texas 14 (1): 1-8, DOI: 10.17348/jbrit.v14.i1.886, URL: https://doi.org/10.17348/jbrit.v14.i1.886
03FF87B5D348FFD1A234547D974DFE14.text	03FF87B5D348FFD1A234547D974DFE14.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Heteranthera IN	<div><p>KEY TO SPECIES OF HETERANTHERA IN NORTH AMERICA (NORTH OF MEXICO)</p><p>1. Inflorescences monoflorous,stamens of similar size.</p><p>2. Leaves all linear,perianth yellow,anthers curling after anthesis _______________________________________________ H. dubia</p><p>2. leaves linear (on seedlings) or with distinct petiole and blade,anthers remaining straight to slightly falcate.</p><p>3. Leaves oblong to ovate,blade base truncate to cuneate;perianth arrangement actinomorphic,upper lobe without lateral flanges _____________________________________________________________________________________ H. limosa</p><p>3. Leaves rounded to oblong, blade base cordate to truncate;perianth arrangement zygomorphic,upper lobe with paired flanges________________________________________________________________________________ H. rotundifolia</p><p>1. Inflorescences 2-many flowered; stamens of two distinct sizes.</p><p>4. Leaves lanceolate to linear, no petiolate leaves produced; inflorescences elongating over several days, filaments obliquely swollen _________________________________________________________________________________ H. mexicana</p><p>4. Leaves with linear seedling leaves only,petiolate leaves abundant as seedlings,filaments linear.</p><p>5. Leaves on flowering plants distinctly cordate (length to width ratio 1–2); perianth mauve with darker blotches on upper central perianth lobe;filaments of lateral (smaller) stamens glabrous_____________________________ H. peduncularis</p><p>5. Leaves on flowering plants reniform to slightly cordate (length to width ratio 0.5–1); perianth white or lavender to purple with bilobed blotches green or brown to purple;filaments of lateral (smaller) stamens pubescent with long hairs.</p><p>6. Inflorescences with 5–15 flowers;the flowering stalk elongating well beyond the spathe apex on emersed inflorescences such that the apical flowers extend well beyond the spathe apex,perianth lobes lavender to purple _________________________________________________________________________________________ H. missouriensis</p><p>6. Inflorescences with 3–8 flowers;the flowering stalk elongating such that the terminal 1–2 flowers might extend beyond the spathe apex and some to most flowers are enclosed within spathe, perianth lobes white to pale lavender.</p><p>7. Leaves mostly rounded; apex obtuse to slightly acute; second internode of cincinnus less than 0.5 cm; hairs on lateral filaments purple____________________________________________________________________ H. pauciflora</p><p>7. Leaves distinctly reniform, apex obtuse; second inter node of cincinnus more than 0.5 cm long; hairs on lateral filaments white ______________________________________________________________________ H. reniformis</p></div>	https://treatment.plazi.org/id/03FF87B5D348FFD1A234547D974DFE14	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Horn, Charles N.	Horn, Charles N. (2020): Two New Species Of Heteranthera (Pontederiaceae) In North America. Journal of the Botanical Research Institute of Texas 14 (1): 1-8, DOI: 10.17348/jbrit.v14.i1.886, URL: https://doi.org/10.17348/jbrit.v14.i1.886
