4. Leucocoprinus ianthinus ( Cooke D Sacc .) Locq . in Bull . mens . Soc . linn . Lyon 14:94.1945.- Fig .53.
Agaricus ianthinus Cooke in Grevillea 16:101.1888, non Agaricus janthinus Fr .: Fr .,1821; Lepiota ianthina ( Cooke O ) Sacc ., Syll . Fung .9: 10.1891; Leucocoprinus ianthinus ( Cooke Ø Sacc .) Mohr in Boletus 18:48.1992( superfluous ).- Lepiota lilacinogranulosa P . Henn . in Verh . bot . ver . Prov . Brandenb .40:145.1898; Leucocoprinus lilacinogranulosus ( P . Henn .) Locq . in Bull . mens . Soc . linn . Lyon 12:94.1943; Leucocoprinus lilacinogranulosus ( P . Henn .) M . Bon et al . in Doc . mycol .19(75):53.1989( superfluous ); Hiatula cepaestipes var . lilacinogranulosa ( P . Henn .) Heim & Romagn . in Bull . trimest . Soc . mycol . Fr .50:184.1934.
SEL . ICON .- Heim & Romagn . in Bull . trimest . Soc . mycol . Fr .50: pl .11, fig .1.1934( as Hiatula cepaestipes var . lilacinogranulosa ); Migl . et al . in Riv . Micol .32:21.1989( as L . lilacinogranulosus );
SEL . DESCR .& FIGS .- Babos in Agarica 6(12):212-213. fig .14.1985( as L . lilacinogranulosus ): Candusso & Lanzoni , Lepiota :484-486, fig .107.1990( as L . lilacinogranulosus ); G . Fischer in Ulmer Pilzfl .1:136.1986; Heim & Romagn . in Bull . trimest . Soc . mycol . Fr .50:184-185, fig .12.1934 tas Hiatula cepaestipes var . lilacinogranu - losa ): Migl . et al . in Riv . Micol .32:20-23.1989( as L . lilacinogranu - losus ); D . Reid in Mycol . Res .93:418.1989( as L . ianthinus and L . lilacinogranulosus resp .).
VERN . NAME - Lilakorrelige plooiparasol .
Pileus in expanded specimens 17-62 mm , when young closed and paraboloid with flattened apex to ovoid , expanding to broadly cam - panulate , conical - campanulate and plano - convex with big , trun - cate umbo . and uplifted margin . at centre finely - squamulose felted , purplish , reddish brown ( K .& W .8E6,9D6,7E5), around cen -tre with small purplish fibrils , especially on the ridges , but mostly white or cream especially in outer half , and there without purplish fib - rils , costate - plicate up to 2/3 of radius or up to umbo , at utmost mar - gin yellowing with age , easily radially splitting , very thin - fleshed . Lamellae , L =35-55,1=(0-)1(-2), moderately distant to moderately crowded , free and remote from stipe , segmentiform - linear to ventri - cose , narrow , up to 3 mm wide , sometimes anastomosing - furcate , white with vague lilacinous sheen on some places when older , with finely flocculose white edge . Stipe 35-70(-150) x 2-5 mm , broaden - ing downwards and there bulbous - clavate , hollow , in apical part yel - lowish white , shiny , lengthwise fibrillose , below annulus white , or pale yellowish white with age , in lower half and at at bulb with purplish - violaceous fibrils to complete lilac covering ( e . g .11C4), with white tomentum at bulb itself , discolouring yellow when bruised . Annulus ascending , and slightly flaring , white , with purplish margin , evanes - cent . Context very thin and soft in pileus , white , concolorous with sur - face in stipe ( but not lilac - tinged ). Smell of cut basidiocarp fungoid . strong , slightly astringent . Taste fungoid . Spore print probably pale lilacinous to white .
Spores 8.0-12 x 5.5-7.5μm , on average 9.4-10.4 x 6.5-6.7μm . Q =1.25-1.7. Qav =1.4-1.55, in side - view ellipsoid - amygdaliform . some with apical papilla , in frontal view ellipsoid to slightly ovoid . ick - walled , with germ pore and hyaline cap over pore , dextrinoid , congophilous , cyanophilous , with pink inner wall and tract in Cresyl Blue . Basidia 17-42 x 8.0-11μ m .4- spored , rarely 2- spored , sur - rounded by 4-6 pseudoparaphyses . Lamella edge sterile ; cheilocystidia 27-80 x 9.0-35 μm . varying from cylindrical , utriform to broadly clavate , thin - walled , colourless . Pleurocystidia absent . Pileus covering made up of irregular chains of cylindrical to ellipsoid to globose ele - ments , with adnate to ascending elements , ranging from 15-35 x 5.0-9.0 μm to 25 um in diam .: pigment intracellular and lilac - brown to greyish lilac . Stipitipellis a cutis of cylindrical colourless hyphae ,4.0-13μm in diam ., with at base of stipe similar elements as on pileus sur - face . Clamp - connections absent .
HABITAT & DISTR .- In small groups , saprotrophic and terrestrial in pots of plants , in greenhouses . Rather rare in the Netherlands , found throughout the year , widespread in Europe , probably of tropical origin .
The name L . ianthinus is used for the species , more commonly known as L . lilacinogranulosus , following Bon ( Fl . mycol . Eur .3, L é piotes :112.1993); Reid ( in Mycol . Res .93:418.1989) gave arguments for and against this synonymy , but he did not reach a conclusion .
Reid ( in Mycol . Res .93:420.1989) distinguished L . lilacinogran - ulosus var . subglobisporus with smaller , subglobose spores ; this vari - ety has not yet been recorded from the Netherlands . Zuccherelli & Migliozzi ( in Boll . Gruppo micol . G . Bres ., n . S .,41:197-203.1998) reported on its occurrence in Italy .
Specimens with grey - lilac to lilac - brown tinges and narrowly lageniform to cylindrical elements on pileus and stipe are described under L . cepaestipes .
参考翻译：
成熟标本菌盖直径17–62毫米，幼时闭合，呈顶部扁平的拟球形至卵形，后展开为宽钟形、圆锥-钟形至平凸形，具大的截头状凸起，边缘上翘。中央区域具细小的鳞片状绒毛，呈淡紫色、红褐色（K. & W. 色卡 8E6, 9D6, 7E5），中央周围有淡紫色细纤毛，尤其在棱纹上，但大部分区域为白色或奶油色，尤其是在外部半部，此处无淡紫色纤毛。菌盖具肋状条纹，可达半径的2/3或直至凸起处。最边缘随年龄增长变黄，易沿径向开裂，菌肉极薄。菌褶数量 L = 35–55，短菌褶数量 l = (0–)1(–2)，间距中等稀疏至中等密集，离生，远离菌柄，呈分段-线形至腹鼓状，窄，宽可达3毫米，有时分叉或呈网状，白色，老熟时局部隐约呈现淡紫色光泽，边缘具细絮状白边。菌柄 长35–70(–150)毫米，粗2–5毫米，向下渐粗，基部呈球棒状，中空。顶部近淡黄白色，有光泽，具纵向纤毛；菌环下方白色或随年龄增长呈浅黄白色；下半部及基部具淡紫色至紫罗兰色纤毛，甚至完全覆盖成淡紫色（11C4），基部本身有白色绒毛。受伤处变黄。菌环上位，向上略微展开，白色，边缘带淡紫色，易消失。菌盖菌肉处极薄且柔软，白色；菌柄处菌肉与表面颜色相同（但不带淡紫色调）。新鲜子实体切开时有明显的真菌气味，强烈，略带涩味。口味真菌味。孢子印可能为淡紫白色至白色。
孢子8.0–12 × 5.5–7.5 微米，平均 9.4–10.4 × 6.5–6.7 微米。Q值（长宽比） = 1.25–1.7，平均Q值 = 1.4–1.55。侧面观为椭圆-杏仁形，部分具顶端乳突；正面观为椭圆形至略卵圆形。壁厚，具发芽孔，孔上有透明盖帽。遇碘液呈糊精样反应，遇刚果红呈阳性，遇棉蓝呈蓝色。在甲苯胺蓝中内壁和纹路呈粉红色。担子17–42 × 8.0–11 微米，具4孢，罕见2孢，周围被4–6个周细胞包围。菌褶边缘不育。褶缘囊状体 27–80 × 9.0–35 微米，形态多变，从圆柱形、烧瓶形至宽棒状，薄壁，无色。侧生囊状体缺失。菌盖表皮由不规则链状的圆柱形至椭圆形至球形细胞构成，细胞贴生至直立，大小范围从 15–35 × 5.0–9.0 微米至直径达25微米。色素为细胞内，呈淡紫褐色至灰淡紫色。菌柄表皮为圆柱形无色菌丝组成的皮层，直径4.0–13微米。菌柄基部有与菌盖表面相似的结构。锁状联合缺失。
生境与分布：小群生长，腐生，陆生，常见于盆栽植物内及温室中。在荷兰较为罕见，全年可见，广泛分布于欧洲，可能起源于热带。
该物种学名 L. ianthinus 被用于指代这个通常更广为人知的 L. lilacinogranulosus 的物种，这一处理遵循 Bon (Fl . mycol . Eur .3, Lépiotes112. 1993) 的观点；Reid (Mycol. Res.93:418. 1989) 对是否合并正反两方面都给出了论据，但未得出结论。
Reid (Mycol. Res.93:418. 1989) 区分出 L. lilacinogranulosus var. subglobisporus，其孢子更小、近球形；此变种在荷兰尚无记录。Zuccherelli & Migliozzi (Boll . Gruppo micol . G. Bresadola, 新系列，41:197-203. 1998) 报道了其在意大利的分布。
