#serotinous

Plant of the Day

Tuesday 25 March 2025

The prickly seed cones of Pinus muricata (Bishop pine, obispo, pricklecone pine, dwarf marine pine, umbrella pine, bull pine, pitch pine, Santa Cruz Island pine) can persist on a tree for many years. The cones mature in 2 years but may persist for up to 70 years or more; with old cones being enveloped by growing branches or the trunk. Seeds are released by fire from ‘serotinous’ pine cones melting the resin, opening up the cones and releasing seeds that are distributed by gravity and wind.

要饭党不懂基本社交礼貌，别说一键三连了，就连个点赞还要再三追讨，照旧死活不给，还要求产粮者这样那样。按照你们圈内的等级观，你算老几啊？你有什么资格说别人“计较”，“纠结”，凭什么要求别人一味“大度”？

现实生活中，别人分享点什么给你，要求说个谢谢不过分吧？死活不觉得自己有问题，永远不自我反思，还理直气壮怼别人，素质败坏！

换做我自己，遇见喜欢的作品，都是真情实感地写百字好评，而且绞尽脑汁思考，要把妙处夸到位，力求肝胆相照，绝非泛泛夸赞。我任何看过的作品都会认真评价感谢，为了尊重那么多人的劳动，享受别人的劳动并不是理所应当的。这些我都不指望，无偿写作长篇，要求读者点个赞怎么那么难？

这种人，贪得心安理得，真是吃不了细糠，活该吔屎！

This is a great article from NPR with a world class forest ecologist.  As a society it is easy for us to vilify forest fires, especially ones on the scale of the Pagami Creek fire a couple years ago.  It's very important to remember that not only are fires not a bad thing, they are crucial to the ecology of the forest.  One of my favorite examples of this are the Jack Pines, they have what are calles serotinous cones.  These kinds of cones won't open to let the seeds out unless they are subjected to heat from a fire.  This is a great advantage because after a fire burns through an area of forest it leaves both an open canopy for sunlight to penetrate down to the ground where new sprouting growth can photosynthesize, but it also provides the ground with excellent nutrients for these new sprouts.  

and a follow up article