Hechtia rosea E. Morren ex Baker, Handb. Bromel.

Espejo-Serna, Adolfo, López-Ferrari, Ana Rosa, Martínez-Correa, Nancy & Pulido-Esparza, Valeria Angélica, 2017, Bromeliad Flora of Chiapas State, Mexico: Richness and Distribution, Phytotaxa 310 (1), pp. 448-450 : 448-450

32. Hechtia rosea E. Morren ex Baker, Handb. Bromel. 140. 1889. MAP 6

MEXICAN DISTRIBUTION: Endemic to Mexico (Chiapas and Oaxaca) .

ELEVATION: 380–750 m

SPECIMENS EXAMINED: Arriaga, C. R. Beutelspacher B. 36 (MEXU), J. Ceja et al. 1381 (UAMIZx2), O. Farrera S. 2174 (CHIP), A. R. López-Ferrari et al. 458 (UAMIZx6), E. Martínez S. et al. 22256 (MEXUx3, MO), A. Reyes-García 3948 (MEXU). Cintalapa, C. R. Beutelspacher B. s. n. (CHIP, UAMIZ), C. A. Purpus 10276 (NY, US), A. Reyes-García et al. 6136 (MEXU, UAMIZ), 6177 (MEXU, UAMIZ). Jiquipilas, O. Farrera S. 376 (CHAP, CHIP), 1125 (CHIP), C. E. Méndez M. 30 (HEM), M. A. Pérez Farrera 131 (HEM).

PITCAIRNIA L´HÉR.

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9. Leaf blades deciduous along a basal straight transversal abscission line, not petiolate ........................................................ 2 Leaf blades persistent, basal straight transversal abscission line absent, usually petiolate ................................................... 4 Inflorescence sessile or subsessile, peduncle very short or absent; petals with a basal, adaxial appendage ... P. heterophylla Inflorescence pedunculated, peduncle conspicuos, elongated; petals not appendaged ......................................................... 3 Sepals 4–4.5 cm long ........................................................................................................................................... P. calderonii Sepals 2–3 cm long ................................................................................................................................................. P. saxicola Petioles absent or if present shorter than 10 cm long ............................................................................................................. 5 Petioles present, longer than 10 cm long ............................................................................................................................... 9 Rosette appressed to the substrate; inflorescence compact, strobiliform, rachis not visible ............................ P. tabuliformis Rosette erect, not appressed to the subtrate; inflorescence lax, racemose, rachis conspicuously visible .............................. 6 Petals red, acuatic plants growing on the shore or in middle of rivers, streams or waterfalls ................................. P. punicea Petals white, greensih-yellow or rose-coloured, plants never acuatic or growing on the shore or in middle of rivers, streams or waterfalls ............................................................................................................................................................................ 7 Flowers conspicuosly secund; corolla white ..................................................................................................... P. secundiflora Flowers not secund; corolla yellow to greenish yellow or rose coloured .............................................................................. 8 Petals greenish-yellow, 4–4.5 cm long; keel of the adaxial sepal margins undulate, ca. 2 mm wide at its widest part .......... ............................................................................................................................... ............................................... P. breedlovei Petals rose coloured, 3.5–4.1 cm long; keel of the adaxial sepal margins straight, ca. 1 mm wide at its widest part ............. ............................................................................................................................... ................................................ P. mirandae Floral bracts imbricate, appressed; rachis fully covered by the floral bracts ....................................................................... 10 Floral bracts not imbricate, divaricate to ascending; rachis visible, not covered by floral bracts ....................................... 13

BROMELIAD FLORA OF CHIAPAS STATE, MEXICO

Phytotaxa 310 (1) © 2017 Magnolia Press • 31

10. Leaf blades entire ..................................................................................................................................................................11

10. Leaf blades serrate, at least the base or on the petiole ......................................................................................................... 12

11. Petals white; sepals ca. 4 cm long .......................................................................................................................... P. carioana

11. Petals yellow to greenish-yellow; sepals 2–3 cm long ........................................................................................ P. wendlandii

12. Inflorescence 35–60 cm long; floral bracts 5–7 cm long, chartaceous, the apex erect, appressed ....................... P. imbricata

12. Inflorescence 13–15 cm long; floral bracts ca. 4.5 cm long, membranaceous, the apex divaricate to ascending .. P. matudae

13. Floral bracts shorter than 2 cm ............................................................................................................................................. 14

13. Floral bracts longer than 2.1 cm ........................................................................................................................................... 17

14. Leaf blades 10–15 cm wide; petals 3.5–5.5 cm long ............................................................................................. P. undulata

14. Leaf blades 1.2–7 cm wide; petals 4–8 cm long .................................................................................................................. 15

15. Petals red; leaves not petiolate; leaf blades 1–2 cm wide ................................................................................. P. tuerckheimii

15. Petals yellow; leaves petiolate; leaf blades 5.5–7.5 cm wide .............................................................................................. 16

16. Sepals red, 2.5–2.8 cm long; petals ca. 7 cm long ................................................................................................. P. ocotensis

16. Sepals green, 1.7–2 cm long; petals 4–5 cm long ................................................................................................ P. chiapensis

17. Corolla white to yellowish-white; pedicels stout; floral bracts erect, 3–4.5 cm long, 1.5–2 cm wide; petals 10–11 cm long; inflorescence glabrous to sparsely floccose ......................................................................................................... P. recurvata

17. Corolla yellow; pedicels slender; floral bracts divaricate, 2.3–3 cm long, 0.5–0.8 cm wide; petals 4–4.6 cm long; inflorescence densely white-lanate-tomentose .................................................................................................................. P. queroana