Sigmoidala kityana (Craib) J.Compton & Schrire, 2019

Compton, James A., Schrire, Brian D., Koenyves 3, Kalman, Forest, Felix, Malakasi, Panagiota, Sawai Mattapha, & Sirichamorn, Yotsawate, 2019, The Callerya Group redefined and Tribe Wisterieae (Fabaceae) emended based on morphology and data from nuclear and chloroplast DNA sequences, PhytoKeys 125, pp. 1-112 : 36-37

Sigmoidala kityana (Craib) J.Compton & Schrire comb. nov.

≡ Millettia kityana Craib, Bull. Misc. Inform. Kew 1927(2): 58 (1927). Type: Thailand, "coll. AFG Kerr, locality Chiengmai [Chiang Mai], altitude 300 m. Aug. 23 1914, large woody climber, flowers pink, by village", Kerr 3347, K000881009 (K, lecto.! designated here); ABDUH: 2/213 (ABD, isolecto.); K000881010 (K, isolecto.!); BM000997330 (BM, isolecto.!); TCD0015789 (TCD, isolecto.!)

≡ Callerya kityana (Craib) Schot, Blumea 39(1-2): 24. (1994)

Note.

In the key to the species of Callerya , Schot placed this species within the segregating couplet "stipellae persistent" as opposed to "stipellae caducous" and noted that the bracteoles were absent and that the wing petals were longer than the keel ( Schot 1994: 9). In our study we have found that the persistent or caducous nature of the stipels is not particularly significant and, moreover, is frequently difficult to verify. Schot also recorded in her species description that the stipules were 3-4 mm long even though Craib had stated that they were 6-8 mm long ( Craib 1927: 58). Our observations have confirmed that the stipules rarely exceed 7 mm in length. This very distinct monospecific genus occurs only within a narrow region of northern and north-eastern Thailand (Fig. 3 , Plate 1C, D ).

Illustration.

(as Millettia kityana ) http://crassa.cocolog-nifty.com/blog/2015/04/millettia-kitya.html

Distribution.

Northern Thailand: Chiang Mai, Nan, Lamphun, Sukhothai; North-east Thailand: Loei.

Etymology.

The generic name refers to the remarkable sigmoid wing petals.

Habitat.

Climbing among dry forest trees in partial sunlight to 400 m. elevation.

Figures

Plate 1. Endosamara, Sigmoidala and Kanburia. A, B Endosamara racemosa, Thailand, Sakon Nakhon Prov., S. Mattapha s. n .. C, D Sigmoidala kityana Thailand, Nan Prov. S. Mattapha 1117 E Kanburia chlorantha Thailand, Kanchanaburi Prov. Y. Sirichamorn Y 2014 - 15 - 1 F Kanburia tenasserimensis Thailand, Ratchaburi, Khao Chon waterfall Y. Sirichamorn YS 2015 - 8.

Figure 3. Sigmoidala kityana (Craib) J. Compton & Schrire. A Habit B young leaf C lower surface of leaf D leaflet detail of hairs E inflorescence F flower bud with bracteole and pedicel G calyx external surface H standard petal inner surface I wing petal J keel petal K staminal column lateral view L staminal column ventral view M stamen dorsal and ventral views N ovary lateral view O style and stigma P pod Q pod detail of surface R seed ventral view S seed lateral view (all from Clark 245). Drawn by Margaret Tebbs.