taxonID	type	description	language	source
99957F8C6C9E550BB2217686A1B44CA6.taxon	description	Figs 2, 3, 4	en	Ruiz-Sanchez, Eduardo, Tyrrell, Christopher D., Carrillo-Reyes, Pablo, Nuno-Rubio, A. T. (2022): A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico. Plant Ecology and Evolution 155 (3): 417-424, DOI: http://dx.doi.org/10.5091/plecevo.86519, URL: http://dx.doi.org/10.5091/plecevo.86519
99957F8C6C9E550BB2217686A1B44CA6.taxon	materials_examined	Type. MEXICO - Jalisco • Puerto Vallarta, Rio Palo Maria; 20 ° 33 ' 8.76 " N, 105 ° 15 ' 34 " W; 6 m; 10 Dec. 2021; fl.; E. Ruiz-Sanchez, A. T. Nuno, A. Zabalgoitia, L. A. Monroy & L. Campos 722; holotype: IBUG; isotypes: MEXU, ZEA.	en	Ruiz-Sanchez, Eduardo, Tyrrell, Christopher D., Carrillo-Reyes, Pablo, Nuno-Rubio, A. T. (2022): A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico. Plant Ecology and Evolution 155 (3): 417-424, DOI: http://dx.doi.org/10.5091/plecevo.86519, URL: http://dx.doi.org/10.5091/plecevo.86519
99957F8C6C9E550BB2217686A1B44CA6.taxon	diagnosis	Diagnosis. Rhipidocladum singuliflorum differs from R. barbinode and R. racemiflorum by having a single terminal spikelet. Meanwhile, R. barbinode has a spicate synflorescence with 3 - 7 spikelets and R. racemiflorum has a raceme synflorescence with 10 - 13 spikelets. R. singuliflorum has efimbriate or poorly developed fimbriae on the foliage leaves, meanwhile, R. barbinode and R. racemiflorum bear fimbriae at the apex of the sheath of the foliage leaves.	en	Ruiz-Sanchez, Eduardo, Tyrrell, Christopher D., Carrillo-Reyes, Pablo, Nuno-Rubio, A. T. (2022): A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico. Plant Ecology and Evolution 155 (3): 417-424, DOI: http://dx.doi.org/10.5091/plecevo.86519, URL: http://dx.doi.org/10.5091/plecevo.86519
99957F8C6C9E550BB2217686A1B44CA6.taxon	description	Description. Culm height 3 - 10 m. Internodes smooth, uniform in colour, 9 - 33 cm long, 3 - 9 mm in diameter, hollow (pithy when young); walls 2 - 3 mm thick. Culm leaves 17 - 19 cm long; sheaths (6.5 -) 7.6 - 9 (- 9.9) cm long, abaxially glabrous, adaxially glabrous and shiny; blades erect, 9 - 10 cm long, abaxially sparsely pubescent at the base, adaxially glabrous, margins entire; fimbriae not seen. Branch complements at mid-culm nodes with (30 -) 41 - 87 (- 120) branchlets; branchlets (8 -) 13 - 30 (- 50) cm long, glabrous or pubescent. Foliage leaves 3 - 4 observed on flowering branchlets; sheaths 9 - 22 mm long, abaxially pubescent (occasionally glabrous); mostly efimbriate, when fimbriate 0.2 - 0.8 mm long, white to stramineous; pseudopetioles 1.0 - 1.6 mm long, abaxially and adaxially pubescent; blades lanceolate to narrowly ovate with an attenuate apex, 32 - 75 mm long, 5 - 7 mm wide, abaxially and adaxially glabrous, without sparse patches of white cilia near the base on the abaxial side. Synflorescences 2.0 - 3.4 cm long, 0.9 - 10 mm wide, composed of a single spike, sometimes develop two spikelets, one of them with only two florets; rachis pubescent. Spikelets 2.0 - 3.4 cm long, comprising 2 - 4 glumes and (2 -) 4 - 5 (- 20) fertile florets, rachilla joints 3.5 - 4 mm long, glabrous. Glumes pubescent margins ciliate, awnless, lower glume, 3.2 - 5.8 mm long, 6 -, 9 -, 10 - nerved, lanceolate; upper glume, 4.8 - 7.0 mm long, 11 -, 13 - nerved, lanceolate. Lemmas 8.8 - 12.0 mm long, 9 -, 13 - nerved, ovate and inflated, pubescent, apex rounded-obtuse and muticous. Palea 10.0 - 13.6 mm long, keels and sulcus pubescent, apex rounded-obtuse and muticous. Lodicules 3, abaxially glabrous, hyaline, margin ciliate apex fimbriate, the anterior pair 2.6 - 3.2 mm long, the posterior one 2.0 - 2.4 mm long. Anthers 3. Ovary 1.0 - 1.5 mm long, stigmas 2, plumose. Caryopsis 3.3 - 3.5 mm long, ellipsoid, pubescent with trichomes near base and apex, indented on hilum side, yellowish-golden.	en	Ruiz-Sanchez, Eduardo, Tyrrell, Christopher D., Carrillo-Reyes, Pablo, Nuno-Rubio, A. T. (2022): A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico. Plant Ecology and Evolution 155 (3): 417-424, DOI: http://dx.doi.org/10.5091/plecevo.86519, URL: http://dx.doi.org/10.5091/plecevo.86519
99957F8C6C9E550BB2217686A1B44CA6.taxon	distribution	Distribution. This species is only known from three localities in the municipality of Puerto Vallarta, Jalisco, Mexico in the Jalisciense-Tuito district of the Sierra Madre del Sur (Santiago-Alvarado et al. 2016) (Fig. 1).	en	Ruiz-Sanchez, Eduardo, Tyrrell, Christopher D., Carrillo-Reyes, Pablo, Nuno-Rubio, A. T. (2022): A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico. Plant Ecology and Evolution 155 (3): 417-424, DOI: http://dx.doi.org/10.5091/plecevo.86519, URL: http://dx.doi.org/10.5091/plecevo.86519
99957F8C6C9E550BB2217686A1B44CA6.taxon	etymology	Etymology. Latin singulus, solitary, and florum, flowered, alluding to usual occurrence of single, terminal spikelet in synflorescence (Figs 2 A, 3 D-F). The use of - florum instead of - spiculum is preferred here [cf. R. racemiflorum].	en	Ruiz-Sanchez, Eduardo, Tyrrell, Christopher D., Carrillo-Reyes, Pablo, Nuno-Rubio, A. T. (2022): A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico. Plant Ecology and Evolution 155 (3): 417-424, DOI: http://dx.doi.org/10.5091/plecevo.86519, URL: http://dx.doi.org/10.5091/plecevo.86519
99957F8C6C9E550BB2217686A1B44CA6.taxon	materials_examined	Additional specimens examined. MEXICO - Jalisco • Puerto Vallarta, 4 km al SE de Playa Grande, subiendo por el Rio Pitillal (2.4 km en linea recta); 20 ° 38 ' 14 " N, 105 ° 10 ' 14 " W; 120 m; 18 Feb. 2022; fl.; P. Carrillo-Reyes & S. Quijas-Fonseca 10093; IBUG • Arroyo El Nogalito, 0.8 km en linea recta al SE del Ecoparque El Nogalito; 20 ° 33 ' 24 " N, 105 ° 14 ' 10 " W; 130 m; 20 Mar. 2022; P. Carrillo-Reyes & A. T. Nuno-Rubio 10106; IBUG • Rio Palo Maria; 20 ° 33 ' 8.76 " N, 105 ° 15 ' 34 " W; 6 m; 16 Nov. 2021; fl.; A. T. Nuno & L. Campos s. n.; IBUG.	en	Ruiz-Sanchez, Eduardo, Tyrrell, Christopher D., Carrillo-Reyes, Pablo, Nuno-Rubio, A. T. (2022): A striking new species of Rhipidocladum (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae) with single, terminal-spikelet synflorescences, endemic to Jalisco, Mexico. Plant Ecology and Evolution 155 (3): 417-424, DOI: http://dx.doi.org/10.5091/plecevo.86519, URL: http://dx.doi.org/10.5091/plecevo.86519
