Table 2 in We are the Crystal Gems: taxonomic revision of the gem-fruited species of Commelina L. (Commelinaceae, Commelinales) and their allies

Table 2. Diagnostic field characters for the gem-fruited species of the Commelina robusta group. CharactersCommelina bambusifoliaCommelina huntiiCommelina robustaCommelina scabrataCommelina sugariae sp. nov.Commelina vestitaGrowth formAscendingProstrate to ascendingProstrate, ascending or scramblingAscendingAscendingErectPedicelGlabrousGlabrousGlabrousGlabrousPuberulous at apex with glandular microhairsGlabrousPaired petal limbLight blue to pale lilac, base cuneateWhite, base subcordate to cordatePale lilac to lilac or light blue to blue, rarely white, base cordate to sagittateLight blue to blue to sky blue, base cordate to sagittateSky blue, base cuneateSky blue, base cordate to sagittateMedial petalWhite, entire, apex involute, glabrous on both sidesWhite, 2-auriculate, apex involute, glabrous on both sidesLight blue to pale lilac, rarely white, entire, completely involute, abaxially puberulous at base with glandular microhairsLight blue to pale lilac, entire, completely involute, glabrous on both sidesWhite, entire, apex involute, glabrous on both sidesWhite, entire, apex slightly involute, glabrous on both sidesLateral anthersOrange-yellow to orangePale orange-yellow to pale apricot-coloured tinted purple to atro-purpureousOrange-yellow to orangeOrange-yellow to orangeOrange-yellow to apricotPale orange-yellow to pale apricotMedial anther connectiveOrangePale orange-yellow to pale apricot, with a vinaceous to atro-vinaceous spot at centreOrange-yellow to orange, with an atro-vinaceous to maroon spot at centreOrangeOrange-yellow to apricot, with an orangebrown spot at centrePale orange-yellow to pale apricot, with a vinaceous to atro-vinaceous spot at centreCapsules1–2 per spathe, off-white, opaque, smooth1–2 per spathe, tancoloured, shiny, sparsely black-papillose3–5 per spathe, tan-coloured, shiny, smooth1–2 per spathe, prismatic, off-white with tan-coloured speckles, opaque, verrucose3–5 per spathe, tancoloured, shiny, smooth6–9 per spathetan-coloured when mature, shiny, smoothSeedsMonomorphic, brown to greyish-brown, free from the fruit wall, widely ellipsoid, slightly cleft towards the embryotega, testa smooth to inconspicuously foveolate, farinose with farinae white, embryotega semilateral, with a prominent apicule, hilum C-shaped and ca. the same length of the seedDimorphic, dark brown with orange-brown verrucae, adnate to (dorsal) or free from the fruit wall (ventral), ellipsoid, not cleft towards the embryotega, testa shallowly foveolate (dorsal) or foveolate (ventral), non-farinose (dorsal) or slightly farinose with farinae apricot, embryotega semilateral, without a prominent apicule, hilum linear (dorsal) or curved (ventral), ca. ½ the length of the seedDimorphic, brown to dark brown, adnate to (dorsal) or free from the fruit wall (ventral), widely ellipsoid (dorsal) or ellipsoid to reniform (ventral), slightly cleft towards the embryotega (dorsal) or not (ventral), testa foveolate (dorsal) or rugose-foveolate (ventral), non-farinose (dorsal) or slightly farinose with farinae white, embryotega semilateral, with a prominent apicule, hilum linear (dorsal) or curved (ventral), ca. ½ the length of the seedDimorphic, brown to dark brown, adnate to (dorsal) or free from the fruit wall (ventral), ellipsoid (dorsal) or ellipsoid to slightly falcate (ventral), slightly cleft towards the embryotega (dorsal) or not (ventral), testa shallowly foveolate (dorsal) or sparsely echinate (ventral), non-farinose (dorsal) or sparsely farinose with farinae wite, embryotega semidorsal (dorsal) or semilateral (ventral), with a prominent apicule (ventral) or not, hilum linear (dorsal) or ca. C-shaped (ventral) and ca. same length as the seedMonomorphic, brown to dark brown, free from the fruit wall, ellipsoid, slightly cleft towards the embryotega, testa foveolate rugose-foveolate, slightly farinose with farinae white, embryotega semilateral, with a prominent apicule, hilum curved and longer than ½ the length of the seedDimorphic, brown to dark brown, adnate to (dorsal) or free from the fruit wall (ventral), ellipsoid (dorsal) or ellipsoid to reniform (ventral), slightly cleft towards the embryotega (dorsal) or not (ventral), testa foveolate (dorsal) or rugose-foveolate (ventral), non-farinose (dorsal) or slightly farinose with farinae white, embryotega semilateral, with a prominent apicule, hilum linear, ca. ½ the length of the seed and on a weak ridge (dorsal) or curved and ca. ½ the length of the seed (ventral)表2. 粗壮鸭跖草组（Commelina robusta group）肉质果类群的分类鉴定性状 性状 竹茎鸭跖草（Commelina bambusifolia） 亨特鸭跖草（Commelina huntii） 粗壮鸭跖草（Commelina robusta） 糙叶鸭跖草（Commelina scabrata） 苏氏鸭跖草（新种，Commelina sugariae sp. nov.） 被毛鸭跖草（Commelina vestita） 生长型 上升 铺散至上升 铺散、上升或攀援 上升 上升 直立 花梗 无毛 无毛 无毛 无毛 顶端被腺状微毛而被短柔毛 无毛 成对花瓣瓣片 淡蓝至淡紫堇色，基部楔形 白色，基部近心形至心形 淡紫堇色至淡紫色，或淡蓝至蓝色，偶见白色，基部心形至戟形 淡蓝至蓝色至天蓝色，基部心形至戟形 天蓝色，基部楔形 天蓝色，基部心形至戟形 中花瓣 白色，全缘，顶端内卷，两面无毛 白色，具2枚耳状突起，顶端内卷，两面无毛 淡蓝至淡紫堇色，偶见白色，全缘，完全内卷，基部背面被腺状微毛的短柔毛 淡蓝至淡紫堇色，全缘，完全内卷，两面无毛 白色，全缘，顶端内卷，两面无毛 白色，全缘，顶端稍内卷，两面无毛 侧生花药 橙黄至橙色 淡橙黄色至淡杏黄色，带紫色至深紫红色调 橙黄至橙色 橙黄至橙色 橙黄至杏黄色 淡橙黄至淡杏黄色 中花药药隔 橙色 淡橙黄至淡杏黄色，中部具酒红色至深酒红色斑点 橙黄至橙色，中部具深酒红色至深紫红色斑点 橙色 橙黄至杏黄色，中部具橙棕色斑点 淡橙黄至淡杏黄色，中部具酒红色至深酒红色斑点 蒴果 每佛焰苞1–2枚，污白色，不透明，表面平滑 每佛焰苞1–2枚，黄褐色，具光泽，疏被黑色乳突 每佛焰苞3–5枚，黄褐色，具光泽，表面平滑 每佛焰苞1–2枚，棱柱形，污白色具黄褐色斑点，不透明，具瘤状突起 每佛焰苞3–5枚，黄褐色，具光泽，表面平滑 每佛焰苞6–9枚，成熟时黄褐色，具光泽，表面平滑 种子 种子同型，棕褐色至灰棕色，与果壁分离，宽椭圆形，朝向胚盖处具浅裂隙，种皮平滑至不明显窝穴状，被白色粉霜，胚盖近侧生，具显著尖突，种脐呈C形，长约与种子相等 种子二型，深棕色具橙棕色瘤状突起，背侧与果壁贴生、腹侧与果壁分离，椭圆形，朝向胚盖处无裂隙，种皮背侧浅窝穴状、腹侧窝穴状，背侧无粉霜、腹侧被杏色粉霜且稍具粉质感，胚盖近侧生，无显著尖突，种脐背侧线形、腹侧弯曲，长约为种子的1/2 种子二型，棕褐色至深棕色，背侧与果壁贴生、腹侧与果壁分离，背侧宽椭圆形、腹侧椭圆形至肾形，背侧朝向胚盖处稍具浅裂隙、腹侧无裂隙，种皮背侧窝穴状、腹侧皱缩窝穴状，背侧无粉霜、腹侧被白色粉霜且稍具粉质感，胚盖近侧生，具显著尖突，种脐背侧线形、腹侧弯曲，长约为种子的1/2 种子二型，棕褐色至深棕色，背侧与果壁贴生、腹侧与果壁分离，背侧椭圆形、腹侧椭圆形至稍镰形，背侧朝向胚盖处稍具浅裂隙、腹侧无裂隙，种皮背侧浅窝穴状、腹侧疏生棘突，背侧无粉霜、腹侧疏被白色粉霜，胚盖背侧近背生、腹侧近侧生，腹侧具显著尖突、背侧无，种脐背侧线形、腹侧近C形，长约与种子相等 种子同型，棕褐色至深棕色，与果壁分离，椭圆形，朝向胚盖处稍具浅裂隙，种皮窝穴状至皱缩窝穴状，被白色粉霜且稍具粉质感，胚盖近侧生，具显著尖突，种脐弯曲，长于种子的1/2 种子二型，棕褐色至深棕色，背侧与果壁贴生、腹侧与果壁分离，背侧椭圆形、腹侧椭圆形至肾形，背侧朝向胚盖处稍具浅裂隙、腹侧无裂隙，种皮背侧窝穴状、腹侧皱缩窝穴状，背侧无粉霜、腹侧被白色粉霜且稍具粉质感，胚盖近侧生，具显著尖突，种脐线形，长约为种子的1/2且生于弱脊上（背侧），或弯曲且长约为种子的1/2（腹侧）