Vandellia yamazakii
Day 93 Vandellia yamazakii
一晚上都在研究怎么绕过付费检测下载标本图片……剩下半小时赶快赶完今天的笔记_(:з」∠)_
找到了一个 Vandellia 属 2014 年发表的原产泰国的新种,Vandellia yamazakii。种加词显然是纪念日本植物学家山崎敬。
我个人觉着这个物种其实很像是环境胁迫下外形有所变化的母草(Torenia crustacea),但没有证据支持这个观点。
发表的文献也没有做分子系统学的研究。


描述如下:
Small annual herbs, (0.7–)3–15(–30) cm tall; stem erect, lax branched, diffuse, slightly quadrangular, typically sparsely to densely sericeous. Leaves sessile, pinnately nerved, often uninerved; lamina chartaceous, linear, filiform-like in dried specimens, 0.5–3(–4) cm long, 1–2 mm wide, apex obtuse to acute, base attenuate, margin entire, sericeous on both sides. Flowers in a terminal lax raceme or often axillary and solitary; pedicel slender, 1–3 cm long, sericeous; bracts filiform, linear-lanceolate or leaf-like, 1–15 mm long. Calyx tubular, 3.5–5 mm long, 5-lobed; lobes divided for ± one-fourth of calyx tube length, apex acute to acuminate, typically densely sericeous. Corolla (5–)7–12(–13) mm long, whitish-purple with yellow blotch on lower lip; upper lip deeply emarginate, 3–4 mm wide, apex acute or acuminate; lower lip broadly 3-lobed, 4–7 mm wide, apex acute to acuminate, somewhat obtuse. Stamens 4, fertile; posterior filaments straight, 0.8–1.5 mm long, thecae 1–1.2 mm long; anterior filaments curved, thecae 0.5–1.2 mm long, clavate spur arising near the base, 1.8–2.2 mm long. Ovary superior, ellipsoid, slightly oblique, glabrous; style 5–6 mm long, slender, erect, glabrous, often persisting until capsule dehisces; stigma 2-lobbed, flat, ovate, 0.6–0.8 mm long, 0.3–0.5 mm wide. Capsule ellipsoid, 3–5 mm long, (1.4–)2–3 mm diam., more or less as long as the calyx. Seeds numerous, broadly ovoid to subglobose, 0.4–0.6 mm long, 0.3–0.5 mm diam., scrobiculate, with alveolated endosperm (bothrospermous).
译文明天再补上。
小型一年生草本,高 (0.7-)3-15(-30) 厘米;茎直立,分枝松散,弥散, 稍四棱形,通常具稀疏至密集的绢毛。叶无柄,羽状脉,常仅一脉;叶片纸质,线形,干燥标本中呈丝状,长 0.5-3(-4) 厘米,宽 1-2 毫米,尖端钝指尖,基部渐狭,边缘全缘,两面具绢毛。花生于一松散的顶上花序或常单生于叶腋;花梗纤细,长 1-3 厘米,具绢毛;苞片丝状,线状披针形或叶状,长 1-15 毫米。萼片管状,长 3.5-5 毫米,5 裂;裂片裂至萼筒的约 1/4 处,顶端尖锐至尾尖,常密被绢毛。花冠长 (5-)7-12(-13) 毫米,白色、紫色并在下唇具黄色斑点;上唇深二裂,宽 3-4 毫米,顶端尖锐或尾尖;下唇阔 3 裂,宽 4-7 毫米,顶端尖锐至尾尖,略钝。雄蕊 4,可育;后方花丝伸直,长 0.8-1.5 毫米,花药长 1-1.2 毫米;前方花丝弯曲,花药长 0.5-1.2 毫米,从近基部伸出棍状突起,长 1.8-2.2 毫米。子房上位,椭球形,稍偏斜,无毛;花柱长 5-6 毫米,纤细,直立,无毛,常宿存直至蒴果裂开。柱头 2 瓣,扁平,卵形,长 0.6-0.8 毫米,宽 0.3-0.5 毫米。蒴果椭球形,长 3-5 毫米,直径 (1.4-)2-3 毫米,长或短于(宿存)花萼。种子多数,宽卵形至近球形,长 0.4-0.6 毫米, 直径 0.3-0.5 毫米,多孔,具蜂窝状的胚乳(种子表面具小孔)。
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小丑与画布 赞了这篇日记 2019-04-04 12:26:04