Begonia sect. Casparya

Jara-Muñoz, Orlando A., Richardson, James E. & Madriñan, Santiago, 2017, A new species of Begonia section Casparya from the Colombian Eastern Cordillera and a key to the Colombian Casparya, Phytotaxa 321 (2), pp. 208-212 : 211-212

publication ID

https://doi.org/ 10.11646/phytotaxa.321.2.6

persistent identifier

https://treatment.plazi.org/id/4800794C-FFC9-D330-6482-F544FA22FCC1

treatment provided by

Felipe

scientific name

Begonia sect. Casparya
status

 

Key of Begonia sect. Casparya in Colombia

1 Fruits with laminar (wing-like) radial projections................................................................................................................ B. trianae View in CoL

- Fruits with horn-like radial projections..............................................................................................................................................2

2 Flowers with white to pinkish perianth..............................................................................................................................................3

- Flowers with deep red, orange or yellow perianth...........................................................................................................................10

3 Fruits without a terminal projection (capsule-column)......................................................................................................................4

- Fruits with a terminal projection (capsule-column)...........................................................................................................................6

4 Styles only once divided or not divided ........................................................................................................................ B. solaniflora View in CoL

- Styles irregularly multifid...................................................................................................................................................................5

5 Tip of the horns of the fruits vertically complanate .............................................................................................................. B. ursina View in CoL

- Tip of the horns of the fruit horizontally complanate..................................................................................................... B.chlorolepis View in CoL

6 Leaves straight with respect to the petiole.........................................................................................................................................7

- Leaves oblique or transverse to the petiole........................................................................................................................................9

7 Staminate flowers with two tepals................................................................................................................................... B. gamolepis View in CoL

- Staminate flowers with four tepals.....................................................................................................................................................8

8 Branches strict; pistillate tepals <5 mm long ....................................................................................................................... B. urticae View in CoL

- Branches diffuse; pistillate tepals> 8 mm long .................................................................................................................... B. diffusa View in CoL

9 Capsule-column longer or as long as the horns................................................................................................................. B. toledana View in CoL

- Capsule-column shorter than the horns ............................................................................................................................... B. cornuta View in CoL

10 Inflorescences with many distichous bracts.....................................................................................................................................11

- Inflorescences with only one pair of bracts......................................................................................................................................12

11 Perianth uniseriate; stamens 4 ............................................................................................................................................... B. oliveri View in CoL

- Perianth biseriate; stamens ca. 8....................................................................................................................................... B. killipiana View in CoL

12 Leaves oblique or transverse to the petiole......................................................................................................................................13

- Leaves straight with respect to the petiole.......................................................................................................................................15

13 Anther shorter than the filament, connective absent ....................................................................................................... B. umbellata View in CoL

- Anther longer than the filament, connective present........................................................................................................................14 14 Leaves densely ferruginous-pubescent; stipules persistent, green ................................................................................. B. ferruginea View in CoL

- Leaves sparsely pubescent; stipules early caducous, hyaline........................................................................................ B. fuchsiiflora View in CoL

15 Flowers with>10 stamens................................................................................................................................................................16

- Flowers <9 stamens..........................................................................................................................................................................18

16 Staminate tepals 12 mm long ..................................................................................................................................... B. antioquiensis

- Staminate tepals <7 mm long...........................................................................................................................................................17

17 Capsule-column about equaling the horns; bracteoles ovate or oblong............................................................................... B. urticae View in CoL

- Capsule-column much shorter than the horns; bracteoles suborbicular....................................................................... B. colombiana View in CoL

18 Stamens 8....................................................................................................................................................................... B. longirostris View in CoL

- Stamens 4 or 6..................................................................................................................................................................................19

19 Stamens 6..........................................................................................................................................................................................20

- Stamens 4..........................................................................................................................................................................................22

20 Plant glabrous ................................................................................................................................................................ B. silverstonii

- Plant pubescent.................................................................................................................................................................................21

21 Leaves densely pubescent,> 20 mm long, margin serrate ..................................................................................................... B. libera View in CoL

- Leaves sparsely pubescent, <20 mm wide, margin serrate-lobulate ............................................................................... B. hexandra View in CoL

22 Perianth of staminate flower completely fused ................................................................................................................. B. lehmanii

- Perianth of staminate flowers partially connate or free....................................................................................................................23

23 Leaves symmetric, lance-acuminate, cuneate at base, ca. 6 times as long broad............................................................ B. irmscherii

- Leaves asymmetric, ovate to oblong, less than 4 times as long as broad.........................................................................................24

24 Leaves with strigulose adaxial pubescence; lamina 2.4−4.1 length/width ratio ................................................................ B. suaviola View in CoL

- Leaves with pilose to glabrescent adaxial surface; lamina 1.8−2.5 length/width ratio................................................... B. kalbreyeri View in CoL

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